Tinymce error : invalid UTF-8 byte sequence - ruby-on-rails

Recently I added Tinymce to my active-admin interface. So that all text areas would have that editor.
I followed these 2 years old guidlines
I did everything like there, then after server restart I get this error:
C:/Users/Edza/Documents/Aptana Studio 3 Workspace/darbs/app/assets/javascripts/tiny_mce/plugins/spellchecker/editor_plugin.js has a invalid UTF-8 byte sequence
I searched for other solution, found this: https://github.com/spohlenz/tinymce-rails/issues/118
There is said that I need to install newest version off Tinymce by addin this in gem " tinymce-rails", "~> 3.5.9.pre2" in Gemfile. I ran bundle install, restarted the server but still got the same error.
Q Should I look for recent guide to add tinymce in active admin? Because 2 years old can be too old ? Or there is other problem over there?
Update
sprockets (2.2.2) lib/sprockets/utils.rb:19:in `block (2 levels) in read_unicode'
sprockets (2.2.2) lib/sprockets/utils.rb:13:in `tap'
sprockets (2.2.2) lib/sprockets/utils.rb:13:in `block in read_unicode'
sprockets (2.2.2) lib/sprockets/utils.rb:12:in `open'
sprockets (2.2.2) lib/sprockets/utils.rb:12:in `open'
sprockets (2.2.2) lib/sprockets/utils.rb:12:in `read_unicode'
sprockets (2.2.2) lib/sprockets/context.rb:184:in `evaluate'
sprockets (2.2.2) lib/sprockets/processed_asset.rb:12:in `initialize'
sprockets (2.2.2) lib/sprockets/base.rb:249:in `new'
sprockets (2.2.2) lib/sprockets/base.rb:249:in `block in build_asset'
sprockets (2.2.2) lib/sprockets/base.rb:270:in `circular_call_protection'
sprockets (2.2.2) lib/sprockets/base.rb:248:in `build_asset'
sprockets (2.2.2) lib/sprockets/index.rb:93:in `block in build_asset'
sprockets (2.2.2) lib/sprockets/caching.rb:19:in `cache_asset'
sprockets (2.2.2) lib/sprockets/index.rb:92:in `build_asset'
sprockets (2.2.2) lib/sprockets/base.rb:169:in `find_asset'
sprockets (2.2.2) lib/sprockets/index.rb:60:in `find_asset'
sprockets (2.2.2) lib/sprockets/processed_asset.rb:111:in `block in resolve_dependencies'
sprockets (2.2.2) lib/sprockets/processed_asset.rb:105:in `each'
sprockets (2.2.2) lib/sprockets/processed_asset.rb:105:in `resolve_dependencies'
sprockets (2.2.2) lib/sprockets/processed_asset.rb:97:in `build_required_assets'
sprockets (2.2.2) lib/sprockets/processed_asset.rb:16:in `initialize'
sprockets (2.2.2) lib/sprockets/base.rb:249:in `new'
sprockets (2.2.2) lib/sprockets/base.rb:249:in `block in build_asset'
sprockets (2.2.2) lib/sprockets/base.rb:270:in `circular_call_protection'
sprockets (2.2.2) lib/sprockets/base.rb:248:in `build_asset'
sprockets (2.2.2) lib/sprockets/index.rb:93:in `block in build_asset'
sprockets (2.2.2) lib/sprockets/caching.rb:19:in `cache_asset'
sprockets (2.2.2) lib/sprockets/index.rb:92:in `build_asset'
sprockets (2.2.2) lib/sprockets/base.rb:169:in `find_asset'
sprockets (2.2.2) lib/sprockets/index.rb:60:in `find_asset'
sprockets (2.2.2) lib/sprockets/bundled_asset.rb:38:in `init_with'
sprockets (2.2.2) lib/sprockets/asset.rb:24:in `from_hash'
sprockets (2.2.2) lib/sprockets/caching.rb:15:in `cache_asset'
sprockets (2.2.2) lib/sprockets/index.rb:92:in `build_asset'
sprockets (2.2.2) lib/sprockets/base.rb:169:in `find_asset'
sprockets (2.2.2) lib/sprockets/index.rb:60:in `find_asset'
sprockets (2.2.2) lib/sprockets/environment.rb:78:in `find_asset'
sprockets (2.2.2) lib/sprockets/base.rb:177:in `[]'
actionpack (3.2.13) lib/sprockets/helpers/rails_helper.rb:126:in `asset_for'
actionpack (3.2.13) lib/sprockets/helpers/rails_helper.rb:27:in `block in javascript_include_tag'
actionpack (3.2.13) lib/sprockets/helpers/rails_helper.rb:26:in `collect'
actionpack (3.2.13) lib/sprockets/helpers/rails_helper.rb:26:in `javascript_include_tag'
app/views/home/index.html.erb:9:in `_app_views_home_index_html_erb__950850484_38370048'
actionpack (3.2.13) lib/action_view/template.rb:145:in `block in render'
activesupport (3.2.13) lib/active_support/notifications.rb:125:in `instrument'
actionpack (3.2.13) lib/action_view/template.rb:143:in `render'
actionpack (3.2.13) lib/action_view/renderer/template_renderer.rb:47:in `block (2 levels) in render_template'
actionpack (3.2.13) lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
activesupport (3.2.13) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.13) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.13) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.13) lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
actionpack (3.2.13) lib/action_view/renderer/template_renderer.rb:46:in `block in render_template'
actionpack (3.2.13) lib/action_view/renderer/template_renderer.rb:54:in `render_with_layout'
actionpack (3.2.13) lib/action_view/renderer/template_renderer.rb:45:in `render_template'
actionpack (3.2.13) lib/action_view/renderer/template_renderer.rb:18:in `render'
actionpack (3.2.13) lib/action_view/renderer/renderer.rb:36:in `render_template'
actionpack (3.2.13) lib/action_view/renderer/renderer.rb:17:in `render'
actionpack (3.2.13) lib/abstract_controller/rendering.rb:110:in `_render_template'
actionpack (3.2.13) lib/action_controller/metal/streaming.rb:225:in `_render_template'
actionpack (3.2.13) lib/abstract_controller/rendering.rb:103:in `render_to_body'
actionpack (3.2.13) lib/action_controller/metal/renderers.rb:28:in `render_to_body'
actionpack (3.2.13) lib/action_controller/metal/compatibility.rb:50:in `render_to_body'
actionpack (3.2.13) lib/abstract_controller/rendering.rb:88:in `render'
actionpack (3.2.13) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.2.13) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
activesupport (3.2.13) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime'
activerecord (3.2.13) lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:39:in `render'
actionpack (3.2.13) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (3.2.13) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (3.2.13) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.13) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.13) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.13) lib/active_support/callbacks.rb:414:in `_run__214337580__process_action__565932412__callbacks'
activesupport (3.2.13) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.13) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.13) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.13) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.13) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.13) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.13) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.13) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.13) lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
activerecord (3.2.13) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.13) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.13) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.13) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.13) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.13) lib/action_controller/metal.rb:246:in `block in action'
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journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.13) lib/action_dispatch/routing/route_set.rb:612:in `call'
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warden (1.2.1) lib/warden/manager.rb:34:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.5) lib/rack/etag.rb:23:in `call'
rack (1.4.5) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.5) lib/rack/session/abstract/id.rb:210:in `context'
rack (1.4.5) lib/rack/session/abstract/id.rb:205:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/cookies.rb:341:in `call'
activerecord (3.2.13) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.13) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
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activesupport (3.2.13) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.13) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.13) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.13) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.13) lib/rails/rack/logger.rb:32:in `call_app'
railties (3.2.13) lib/rails/rack/logger.rb:16:in `block in call'
activesupport (3.2.13) lib/active_support/tagged_logging.rb:22:in `tagged'
railties (3.2.13) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.13) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.5) lib/rack/lock.rb:15:in `call'
actionpack (3.2.13) lib/action_dispatch/middleware/static.rb:63:in `call'
railties (3.2.13) lib/rails/engine.rb:479:in `call'
railties (3.2.13) lib/rails/application.rb:223:in `call'
rack (1.4.5) lib/rack/content_length.rb:14:in `call'
railties (3.2.13) lib/rails/rack/log_tailer.rb:17:in `call'
thin (1.5.1) lib/thin/connection.rb:81:in `block in pre_process'
thin (1.5.1) lib/thin/connection.rb:79:in `catch'
thin (1.5.1) lib/thin/connection.rb:79:in `pre_process'
thin (1.5.1) lib/thin/connection.rb:54:in `process'
thin (1.5.1) lib/thin/connection.rb:39:in `receive_data'
eventmachine-1.0.3-x86 (mingw32) lib/eventmachine.rb:187:in `run_machine'
eventmachine-1.0.3-x86 (mingw32) lib/eventmachine.rb:187:in `run'
thin (1.5.1) lib/thin/backends/base.rb:63:in `start'
thin (1.5.1) lib/thin/server.rb:159:in `start'
rack (1.4.5) lib/rack/handler/thin.rb:13:in `run'
rack (1.4.5) lib/rack/server.rb:268:in `start'
railties (3.2.13) lib/rails/commands/server.rb:70:in `start'
railties (3.2.13) lib/rails/commands.rb:55:in `block in <top (required)>'
railties (3.2.13) lib/rails/commands.rb:50:in `tap'
railties (3.2.13) lib/rails/commands.rb:50:in `<top (required)>'
script/rails:6:in `require'
script/rails:6:in `<main>'
Thanks :)

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`JSON::ParserError in Application#index
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`json (1.8.2) lib/json/common.rb:155:in `initialize'
json (1.8.2) lib/json/common.rb:155:in `new'
json (1.8.2) lib/json/common.rb:155:in `parse'
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/Users/ben/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/open3.rb:199:in `popen_run'
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tilt (1.4.1) lib/tilt/template.rb:103:in `render'
sprockets (2.2.3) lib/sprockets/context.rb:193:in `block in evaluate'
sprockets (2.2.3) lib/sprockets/context.rb:190:in `each'
sprockets (2.2.3) lib/sprockets/context.rb:190:in `evaluate'
sprockets (2.2.3) lib/sprockets/processed_asset.rb:12:in `initialize'
sprockets (2.2.3) lib/sprockets/base.rb:249:in `new'
sprockets (2.2.3) lib/sprockets/base.rb:249:in `block in build_asset'
sprockets (2.2.3) lib/sprockets/base.rb:270:in `circular_call_protection'
sprockets (2.2.3) lib/sprockets/base.rb:248:in `build_asset'
sprockets (2.2.3) lib/sprockets/index.rb:93:in `block in build_asset'
sprockets (2.2.3) lib/sprockets/caching.rb:19:in `cache_asset'
sprockets (2.2.3) lib/sprockets/index.rb:92:in `build_asset'
sprockets (2.2.3) lib/sprockets/base.rb:169:in `find_asset'
sprockets (2.2.3) lib/sprockets/index.rb:60:in `find_asset'
sprockets (2.2.3) lib/sprockets/bundled_asset.rb:16:in `initialize'
sprockets (2.2.3) lib/sprockets/base.rb:252:in `new'
sprockets (2.2.3) lib/sprockets/base.rb:252:in `build_asset'
sprockets (2.2.3) lib/sprockets/index.rb:93:in `block in build_asset'
sprockets (2.2.3) lib/sprockets/caching.rb:19:in `cache_asset'
sprockets (2.2.3) lib/sprockets/index.rb:92:in `build_asset'
sprockets (2.2.3) lib/sprockets/base.rb:169:in `find_asset'
sprockets (2.2.3) lib/sprockets/index.rb:60:in `find_asset'
sprockets (2.2.3) lib/sprockets/environment.rb:78:in `find_asset'
sprockets (2.2.3) lib/sprockets/base.rb:177:in `[]'
actionpack (3.2.18) lib/sprockets/helpers/rails_helper.rb:126:in `asset_for'
actionpack (3.2.18) lib/sprockets/helpers/rails_helper.rb:27:in `block in javascript_include_tag'
actionpack (3.2.18) lib/sprockets/helpers/rails_helper.rb:26:in `collect'
actionpack (3.2.18) lib/sprockets/helpers/rails_helper.rb:26:in `javascript_include_tag'
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actionpack (3.2.18) lib/action_view/template.rb:145:in `block in render'
activesupport (3.2.18) lib/active_support/notifications.rb:125:in `instrument'
actionpack (3.2.18) lib/action_view/template.rb:143:in `render'
actionpack (3.2.18) lib/action_view/renderer/template_renderer.rb:59:in `render_with_layout'
actionpack (3.2.18) lib/action_view/renderer/template_renderer.rb:45:in `render_template'
actionpack (3.2.18) lib/action_view/renderer/template_renderer.rb:18:in `render'
actionpack (3.2.18) lib/action_view/renderer/renderer.rb:36:in `render_template'
actionpack (3.2.18) lib/action_view/renderer/renderer.rb:17:in `render'
actionpack (3.2.18) lib/abstract_controller/rendering.rb:110:in `_render_template'
actionpack (3.2.18) lib/action_controller/metal/streaming.rb:225:in `_render_template'
actionpack (3.2.18) lib/abstract_controller/rendering.rb:103:in `render_to_body'
actionpack (3.2.18) lib/action_controller/metal/renderers.rb:28:in `render_to_body'
actionpack (3.2.18) lib/action_controller/metal/compatibility.rb:50:in `render_to_body'
actionpack (3.2.18) lib/abstract_controller/rendering.rb:88:in `render'
actionpack (3.2.18) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (3.2.18) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.2.18) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/Users/ben/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/benchmark.rb:303:in `realtime'
activesupport (3.2.18) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.2.18) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
actionpack (3.2.18) lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime'
sequel-rails (0.9.11) lib/sequel_rails/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
actionpack (3.2.18) lib/action_controller/metal/instrumentation.rb:39:in `render'
app/controllers/application_controller.rb:7:in `index'
actionpack (3.2.18) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.18) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.18) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.18) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.18) lib/active_support/callbacks.rb:414:in `_run__749368673318476381__process_action__3475398207843127101__callbacks'
activesupport (3.2.18) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.18) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
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actionpack (3.2.18) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.18) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.18) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.18) lib/active_support/notifications.rb:123:in `instrument'
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actionpack (3.2.18) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.18) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.18) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.18) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.18) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:73:in `call'
actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:36:in `call'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:608:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.5) lib/rack/etag.rb:23:in `call'
rack (1.4.5) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.5) lib/rack/session/abstract/id.rb:210:in `context'
rack (1.4.5) lib/rack/session/abstract/id.rb:205:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/cookies.rb:341:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.18) lib/active_support/callbacks.rb:405:in `_run__103614042811221451__call__1909597293413008327__callbacks'
activesupport (3.2.18) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.18) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.18) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.18) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.18) lib/rails/rack/logger.rb:32:in `call_app'
railties (3.2.18) lib/rails/rack/logger.rb:16:in `block in call'
activesupport (3.2.18) lib/active_support/tagged_logging.rb:22:in `tagged'
railties (3.2.18) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.18) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.5) lib/rack/lock.rb:15:in `call'
actionpack (3.2.18) lib/action_dispatch/middleware/static.rb:63:in `call'
railties (3.2.18) lib/rails/engine.rb:484:in `call'
railties (3.2.18) lib/rails/application.rb:231:in `call'
rack (1.4.5) lib/rack/content_length.rb:14:in `call'
railties (3.2.18) lib/rails/rack/log_tailer.rb:17:in `call'
thin (1.6.3) lib/thin/connection.rb:86:in `block in pre_process'
thin (1.6.3) lib/thin/connection.rb:84:in `catch'
thin (1.6.3) lib/thin/connection.rb:84:in `pre_process'
thin (1.6.3) lib/thin/connection.rb:53:in `process'
thin (1.6.3) lib/thin/connection.rb:39:in `receive_data'
eventmachine (1.0.7) lib/eventmachine.rb:187:in `run_machine'
eventmachine (1.0.7) lib/eventmachine.rb:187:in `run'
thin (1.6.3) lib/thin/backends/base.rb:73:in `start'
thin (1.6.3) lib/thin/server.rb:162:in `start'
rack (1.4.5) lib/rack/handler/thin.rb:13:in `run'
rack (1.4.5) lib/rack/server.rb:268:in `start'
railties (3.2.18) lib/rails/commands/server.rb:70:in `start'
railties (3.2.18) lib/rails/commands.rb:55:in `block in <top (required)>'
railties (3.2.18) lib/rails/commands.rb:50:in `tap'
railties (3.2.18) lib/rails/commands.rb:50:in `<top (required)>'
script/rails:6:in `require'
script/rails:6:in `<main>'`
Would need to see the gemfile for this. The guess is that you are missing the JS runtime which leads to JS not being compiled which leads to missing JSON.
Look at: Rails 3.1 issue with javascript_include_tag in application.html.erb (answer from #Confusion)
You Should upgrade ruby in order to solve this issue.

Rails - Permission denied - /home/rails/tmp/cache

Whenever I try to load a page with the 'mercury' editor stylesheet I get:
Started GET "/" for 84.73.28.228 at 2014-05-07 10:56:38 +0000
Processing by StaticController#index as HTML
Rendered layouts/_socialmedia.html.erb (2.0ms)
Rendered static/index.html.erb within layouts/application (6.8ms)
Rendered layouts/_menu.html.erb (1.7ms)
Rendered layouts/_footer.html.erb (1.4ms)
Rendered layouts/_analytics.html.erb (0.3ms)
Completed 200 OK in 29ms (Views: 17.5ms | ActiveRecord: 1.3ms)
Started GET "/editor/" for 84.73.28.228 at 2014-05-07 10:56:41 +0000
Processing by MercuryController#edit as HTML
Rendered text template within layouts/mercury (0.0ms)
Compiled jquery-1.7.js (4ms) (pid 26385)
Completed 500 Internal Server Error in 100ms
ActionView::Template::Error (Permission denied - /home/rails/tmp/cache/assets/D5E):
5: <%= csrf_meta_tags %>
6: <title>Mercury Editor</title>
7: <%= stylesheet_link_tag 'mercury' %>
8: <%= javascript_include_tag 'jquery-1.7', 'mercury' %>
9: </head>
10: <body>
11: <script type="text/javascript">
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/fileutils.rb:245:in `mkdir'
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/fileutils.rb:245:in `fu_mkdir'
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/fileutils.rb:219:in `block (2 levels) in mkdir_p'
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/fileutils.rb:217:in `reverse_each'
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/fileutils.rb:217:in `block in mkdir_p'
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/fileutils.rb:203:in `each'
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/fileutils.rb:203:in `mkdir_p'
activesupport (3.2.11) lib/active_support/cache/file_store.rb:161:in `ensure_cache_path'
activesupport (3.2.11) lib/active_support/cache/file_store.rb:90:in `write_entry'
activesupport (3.2.11) lib/active_support/cache/strategy/local_cache.rb:140:in `write_entry'
activesupport (3.2.11) lib/active_support/cache.rb:364:in `block in write'
activesupport (3.2.11) lib/active_support/cache.rb:520:in `instrument'
activesupport (3.2.11) lib/active_support/cache.rb:362:in `write'
sprockets (2.2.2) lib/sprockets/caching.rb:90:in `cache_set'
sprockets (2.2.2) lib/sprockets/caching.rb:53:in `cache_set_hash'
sprockets (2.2.2) lib/sprockets/caching.rb:24:in `cache_asset'
sprockets (2.2.2) lib/sprockets/index.rb:92:in `build_asset'
sprockets (2.2.2) lib/sprockets/base.rb:169:in `find_asset'
sprockets (2.2.2) lib/sprockets/index.rb:60:in `find_asset'
sprockets (2.2.2) lib/sprockets/bundled_asset.rb:16:in `initialize'
sprockets (2.2.2) lib/sprockets/base.rb:252:in `new'
sprockets (2.2.2) lib/sprockets/base.rb:252:in `build_asset'
sprockets (2.2.2) lib/sprockets/index.rb:93:in `block in build_asset'
sprockets (2.2.2) lib/sprockets/caching.rb:19:in `cache_asset'
sprockets (2.2.2) lib/sprockets/index.rb:92:in `build_asset'
sprockets (2.2.2) lib/sprockets/base.rb:169:in `find_asset'
sprockets (2.2.2) lib/sprockets/index.rb:60:in `find_asset'
sprockets (2.2.2) lib/sprockets/base.rb:177:in `[]'
actionpack (3.2.11) lib/sprockets/helpers/rails_helper.rb:162:in `rewrite_extension'
actionpack (3.2.11) lib/action_view/asset_paths.rb:26:in `compute_public_path'
actionpack (3.2.11) lib/sprockets/helpers/rails_helper.rb:56:in `asset_path'
actionpack (3.2.11) lib/sprockets/helpers/rails_helper.rb:32:in `block in javascript_include_tag'
actionpack (3.2.11) lib/sprockets/helpers/rails_helper.rb:26:in `collect'
actionpack (3.2.11) lib/sprockets/helpers/rails_helper.rb:26:in `javascript_include_tag'
mercury-rails (0.9.0) app/views/layouts/mercury.html.erb:8:in `__usr_local_rvm_gems_ruby_______p____gems_mercury_rails_______app_views_layouts_mercury_html_erb__3694222398901886890_33552740'
actionpack (3.2.11) lib/action_view/template.rb:145:in `block in render'
activesupport (3.2.11) lib/active_support/notifications.rb:125:in `instrument'
actionpack (3.2.11) lib/action_view/template.rb:143:in `render'
actionpack (3.2.11) lib/action_view/renderer/template_renderer.rb:59:in `render_with_layout'
actionpack (3.2.11) lib/action_view/renderer/template_renderer.rb:45:in `render_template'
actionpack (3.2.11) lib/action_view/renderer/template_renderer.rb:18:in `render'
actionpack (3.2.11) lib/action_view/renderer/renderer.rb:36:in `render_template'
actionpack (3.2.11) lib/action_view/renderer/renderer.rb:17:in `render'
actionpack (3.2.11) lib/abstract_controller/rendering.rb:110:in `_render_template'
actionpack (3.2.11) lib/action_controller/metal/streaming.rb:225:in `_render_template'
actionpack (3.2.11) lib/abstract_controller/rendering.rb:103:in `render_to_body'
actionpack (3.2.11) lib/action_controller/metal/renderers.rb:28:in `render_to_body'
actionpack (3.2.11) lib/action_controller/metal/compatibility.rb:50:in `render_to_body'
actionpack (3.2.11) lib/abstract_controller/rendering.rb:88:in `render'
actionpack (3.2.11) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.2.11) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/2.0.0/benchmark.rb:296:in `realtime'
activesupport (3.2.11) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime'
activerecord (3.2.11) lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:39:in `render'
mercury-rails (0.9.0) app/controllers/mercury_controller.rb:9:in `edit'
actionpack (3.2.11) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.11) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.11) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.11) lib/active_support/callbacks.rb:425:in `_run__4116608381698480854__process_action__2358713743569235138__callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.11) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.11) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.11) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.11) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.11) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
activerecord (3.2.11) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.11) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.11) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.11) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.11) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.11) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:73:in `call'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:36:in `call'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:601:in `call'
railties (3.2.11) lib/rails/engine.rb:479:in `call'
railties (3.2.11) lib/rails/railtie/configurable.rb:30:in `method_missing'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:601:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `catch'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.5) lib/rack/etag.rb:23:in `call'
rack (1.4.5) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.5) lib/rack/session/abstract/id.rb:210:in `context'
rack (1.4.5) lib/rack/session/abstract/id.rb:205:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/cookies.rb:341:in `call'
activerecord (3.2.11) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.11) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `_run__3113844860461911926__call__1767113983053102621__callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.11) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.11) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.11) lib/rails/rack/logger.rb:32:in `call_app'
railties (3.2.11) lib/rails/rack/logger.rb:16:in `block in call'
activesupport (3.2.11) lib/active_support/tagged_logging.rb:22:in `tagged'
railties (3.2.11) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.11) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.5) lib/rack/lock.rb:15:in `call'
rack-cache (1.2) lib/rack/cache/context.rb:136:in `forward'
rack-cache (1.2) lib/rack/cache/context.rb:245:in `fetch'
rack-cache (1.2) lib/rack/cache/context.rb:185:in `lookup'
rack-cache (1.2) lib/rack/cache/context.rb:66:in `call!'
rack-cache (1.2) lib/rack/cache/context.rb:51:in `call'
railties (3.2.11) lib/rails/engine.rb:479:in `call'
railties (3.2.11) lib/rails/application.rb:223:in `call'
railties (3.2.11) lib/rails/railtie/configurable.rb:30:in `method_missing'
unicorn (4.7.0) lib/unicorn/http_server.rb:580:in `process_client'
unicorn (4.7.0) lib/unicorn/http_server.rb:660:in `worker_loop'
unicorn (4.7.0) lib/unicorn/http_server.rb:527:in `spawn_missing_workers'
unicorn (4.7.0) lib/unicorn/http_server.rb:153:in `start'
unicorn (4.7.0) bin/unicorn:126:in `<top (required)>'
/usr/local/rvm/gems/ruby-2.0.0-p353/bin/unicorn:23:in `load'
/usr/local/rvm/gems/ruby-2.0.0-p353/bin/unicorn:23:in `<main>'
/usr/local/rvm/gems/ruby-2.0.0-p353/bin/ruby_executable_hooks:15:in `eval'
/usr/local/rvm/gems/ruby-2.0.0-p353/bin/ruby_executable_hooks:15:in `<main>'
I've tried
chown -R rails:rails /home/rails.
I've tried deleting tmp and recreating it.
I've tried precompiling assets and clearing the chache. I've tried increasing the asset version.
Database acess works fine. This all happens in a production environment. I've given my rails user root privileges, everything, but he doesn't want to quit complaining.
I use the digital ocean rails droplet, it has nginx with unicorn.
Any ideas?
I have none on where to begin...
After chown-ing some more directories, I finally get another error:
ActionView::Template::Error (jquery-1.7.js isn't precompiled):.
Exclusively adding this to the asset pipeline; Then on precompiling assets it gave me: Command failed with status ().
So it turns out the default rails droplet provided by digital ocean is 64 bit with 500mb RAM, which causes rails to do all these weird things because it can't breathe. Doing my own thing from a 34 bit distro solved the problem.

Sass::SyntaxError at / The selector ".date" was not found

Recently installed Ubuntu 14.04 amd64 and also installed rails 3.2.16 but when I try to run a rails application I have this error that I didn't have in Ubuntu 12.04 amd64:
Sass::SyntaxError at /
".date" failed to #extend ".date".
The selector ".date" was not found.
Use "#extend .date !optional" if the extend should be able to fail.
If I use !optional have the next error:
"#sub-header-schedules .modal .dialog" failed to #extend ".modal-lg".
The selector ".modal-lg" was not found.
Use "#extend .modal-lg !optional" if the extend should be able to fail.
In the terminal server I get the following:
Started GET "/" for 127.0.0.1 at 2014-04-29 13:01:26 -0300
Processing by Devise::SessionsController#new as HTML
Rendered devise/sessions/new.html.haml within layouts/application (2.6ms)
Warning. Error encountered while saving cache /home/leonel/workspace/cultural/tmp/cache/sass/7f514e7fa7713122c182bcdb2a4a8f148548b8de/application.css.scssc: can't dump anonymous class #<Class:0x00000004e405f8>
Warning. Error encountered while saving cache /home/leonel/workspace/cultural/tmp/cache/sass/da56d9de77964072bd800d55c1ebc7f2475a4e93/bootstrap.scssc: can't dump anonymous class #<Class:0x00000004e405f8>
....
.... (the same error much times).
....
Warning. Error encountered while saving cache /home/leonel/workspace/cultural/tmp/cache/sass/e2891a7f50f255dd8c1d3cc31ddf861078fa5098/_responsive-utilities.scssc: can't dump anonymous class #<Class:0x00000004e405f8>
Completed 500 Internal Server Error in 6761.3ms
Sass::SyntaxError - "#sub-header-schedules .modal .dialog" failed to #extend ".modal-lg".
The selector ".modal-lg" was not found.
Use "#extend .modal-lg !optional" if the extend should be able to fail.
(in /home/leonel/workspace/cultural/app/assets/stylesheets/schedules.css.scss):
app/assets/stylesheets/schedules.css.scss:49:in `'
sass (3.3.6) lib/sass/tree/visitors/extend.rb:65:in `block in check_extends_fired!'
sass (3.3.6) lib/sass/util/subset_map.rb:106:in `block in each_value'
sass (3.3.6) lib/sass/util/subset_map.rb:106:in `each'
sass (3.3.6) lib/sass/util/subset_map.rb:106:in `each_value'
sass (3.3.6) lib/sass/tree/visitors/extend.rb:50:in `check_extends_fired!'
sass (3.3.6) lib/sass/tree/visitors/extend.rb:16:in `visit'
sass (3.3.6) lib/sass/tree/root_node.rb:39:in `css_tree'
sass (3.3.6) lib/sass/tree/root_node.rb:20:in `render'
sass (3.3.6) lib/sass/engine.rb:274:in `render'
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/home/leonel/.rvm/rubies/ruby-1.9.3-p545/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
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script/rails:6:in `require'
script/rails:6:in `<main>'
The error is here:
My css files:
https://gist.github.com/jlgasparrini/11405496
You need to change ordering in application.css.scss as below:
/*
*= require jquery.ui.core
*= require jquery.ui.theme
*= require _font-awesome
*= require token-input-facebook
*= require dataTables/src/demo_table_jui
*= require bootstrap-multiselect
*= require bootstrap-datetimepicker
*= require fullcalendar
*= require fullcalendar.print
*= require dataTables/extras/TableTools
*= require dataTables/extras/TableTools_JUI
*/
/* Shifted below mentioned line */
/*
*= require_self
*= require_tree .
*/
#import "bootstrap";
schedules.css.scss is loaded with *= require_tree . statement and as you are using classes defined in other libraries you need to load them first so they can be used in schedules.css.scss
I had a problem with bootstrap-sass version.
Solved it with:
gem uninstall bootstrap-sass -v 3.1.1.1 && gem uninstall bootstrap-sass -v 3.1.1.0

ArgumentError - dump format error for symbol(0x69)

So I just upgraded to FontAwesome 4.0. Part of this change is the way icons are referenced.
No longer can you do: <i class="icon-beer"></i>.
Now...you have to replace icon with fa-, so the above now looks like this:
<i class="fa fa-beer"></i>
So in a stroke of brilliance I decided to replace all references to icon- in my project with fa fa-.
That included cached files, dump files, and all stylesheets, views, etc.
Now...when I try to load any page, I get this error:
ArgumentError at /
dump format error for symbol(0x69)
The log looks like this:
Completed 500 Internal Server Error in 1060ms
ArgumentError - dump format error for symbol(0x69):
activesupport (3.2.14) lib/active_support/cache.rb:587:in `value'
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rack-mini-profiler (0.1.31) Ruby/lib/mini_profiler/profiling_methods.rb:108:in `block in profile_method'
actionpack (3.2.14) lib/action_view/renderer/template_renderer.rb:60:in `render_with_layout'
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actionpack (3.2.14) lib/action_view/renderer/renderer.rb:36:in `render_template'
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actionpack (3.2.14) lib/abstract_controller/rendering.rb:88:in `render'
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actionpack (3.2.14) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.2.14) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/me/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/benchmark.rb:296:in `realtime'
activesupport (3.2.14) lib/active_support/core_ext/benchmark.rb:5:in `ms'
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actionpack (3.2.14) lib/action_controller/metal/instrumentation.rb:39:in `render'
remotipart (1.2.1) lib/remotipart/render_overrides.rb:14:in `render_with_remotipart'
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actionpack (3.2.14) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (3.2.14) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.14) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.14) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
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actionpack (3.2.14) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.14) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.14) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.14) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.14) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.14) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.14) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.14) lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
activerecord (3.2.14) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
newrelic_rpm (3.6.8.168) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:38:in `block in process_action'
newrelic_rpm (3.6.8.168) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:324:in `perform_action_with_newrelic_trace'
newrelic_rpm (3.6.8.168) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:37:in `process_action'
actionpack (3.2.14) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.14) lib/abstract_controller/rendering.rb:45:in `process'
rack-mini-profiler (0.1.31) Ruby/lib/mini_profiler/profiling_methods.rb:108:in `block in profile_method'
actionpack (3.2.14) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.14) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.14) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.14) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (3.2.14) lib/action_dispatch/routing/route_set.rb:36:in `call'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.14) lib/action_dispatch/routing/route_set.rb:608:in `call'
rack-pjax (0.7.0) lib/rack/pjax.rb:12:in `call'
newrelic_rpm (3.6.8.168) lib/new_relic/rack/error_collector.rb:43:in `call'
newrelic_rpm (3.6.8.168) lib/new_relic/rack/agent_hooks.rb:22:in `call'
newrelic_rpm (3.6.8.168) lib/new_relic/rack/browser_monitoring.rb:16:in `call'
bullet (4.6.0) lib/bullet/rack.rb:10:in `call'
meta_request (0.2.8) lib/meta_request/middlewares/app_request_handler.rb:13:in `call'
rack-contrib (1.1.0) lib/rack/contrib/response_headers.rb:17:in `call'
meta_request (0.2.8) lib/meta_request/middlewares/headers.rb:16:in `call'
meta_request (0.2.8) lib/meta_request/middlewares/meta_request_handler.rb:13:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.5) lib/rack/etag.rb:23:in `call'
rack (1.4.5) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/head.rb:14:in `call'
remotipart (1.2.1) lib/remotipart/middleware.rb:27:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.5) lib/rack/session/abstract/id.rb:210:in `context'
rack (1.4.5) lib/rack/session/abstract/id.rb:205:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/cookies.rb:341:in `call'
activerecord (3.2.14) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.14) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.14) lib/active_support/callbacks.rb:405:in `_run__1838779961944472927__call__2777002074146462717__callbacks'
activesupport (3.2.14) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.14) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.14) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.14) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
better_errors (1.0.1) lib/better_errors/middleware.rb:84:in `protected_app_call'
better_errors (1.0.1) lib/better_errors/middleware.rb:79:in `better_errors_call'
better_errors (1.0.1) lib/better_errors/middleware.rb:56:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.14) lib/rails/rack/logger.rb:32:in `call_app'
railties (3.2.14) lib/rails/rack/logger.rb:16:in `block in call'
activesupport (3.2.14) lib/active_support/tagged_logging.rb:22:in `tagged'
railties (3.2.14) lib/rails/rack/logger.rb:16:in `call'
quiet_assets (1.0.2) lib/quiet_assets.rb:18:in `call_with_quiet_assets'
actionpack (3.2.14) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.14) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.5) lib/rack/lock.rb:15:in `call'
actionpack (3.2.14) lib/action_dispatch/middleware/static.rb:63:in `call'
rack-mini-profiler (0.1.31) Ruby/lib/mini_profiler/profiler.rb:278:in `call'
railties (3.2.14) lib/rails/engine.rb:484:in `call'
railties (3.2.14) lib/rails/application.rb:231:in `call'
rack (1.4.5) lib/rack/content_length.rb:14:in `call'
railties (3.2.14) lib/rails/rack/log_tailer.rb:17:in `call'
thin (1.5.1) lib/thin/connection.rb:81:in `block in pre_process'
thin (1.5.1) lib/thin/connection.rb:79:in `pre_process'
thin (1.5.1) lib/thin/connection.rb:54:in `process'
thin (1.5.1) lib/thin/connection.rb:39:in `receive_data'
eventmachine (1.0.3) lib/eventmachine.rb:187:in `run'
thin (1.5.1) lib/thin/backends/base.rb:63:in `start'
thin (1.5.1) lib/thin/server.rb:159:in `start'
rack (1.4.5) lib/rack/handler/thin.rb:13:in `run'
rack (1.4.5) lib/rack/server.rb:268:in `start'
railties (3.2.14) lib/rails/commands/server.rb:70:in `start'
railties (3.2.14) lib/rails/commands.rb:55:in `block in <top (required)>'
railties (3.2.14) lib/rails/commands.rb:50:in `<top (required)>'
script/rails:6:in `<main>'
Thoughts on how I can fix this?
this happened to me, and i guessed that the reason was the global find-and-replace mucked around in the tmp directory, which caused some asset compilation problems
so i ran
rake tmp:clear
and the problem went away. maybe this helps someone.
You should first try to reverse the process, replacing every fa fa- with icon- again.
After that you can try to do the replacement again but only with your views folder, which should contain all the icon markup.
I ran into a similar problem, running perl -pi -e to replace references to a directory with something else:
dump format error for symbol(0x73).
In my case the problem turned out to be that a file with some SASS variables I had was suffixed ".css.scss" instead of ".scss", which for some reason broke the whole app.

Delayed Job and Rails Admin: uninitialized constant ActiveRecord::Base::Delayed::Job

Hi all SO users fixing bugs on Thanksgiving,
My delayed job setup is working fine, I have it running in production and development, but when accessing the users section of rails admin, I get the error
uninitialized constant ActiveRecord::Base::Delayed::Job
Am I supposed to define a delayed job class somewhere? If so, what's the correct syntax for that? Delayed::Job or DelayedJob? I've tried doing this with no success.
I also ran the migration to create the jobs table. Maybe there is an association between user and delayed job that is defined somewhere? Not too sure...
Here's a full trace:
ActionView::Template::Error (uninitialized constant ActiveRecord::Base::Delayed::Job):
10:
11: export_action = RailsAdmin::Config::Actions.find(:export, { :controller => self.controller, :abstract_model => #abstract_model })
12: export_action = export_action && authorized?(export_action.authorization_key, #abstract_model) ? export_action : nil
13:
14: properties = #model_config.list.with(:controller => self.controller, :view => self, :object => #abstract_model.model.new).visible_fields
15: # columns paginate
16: #filterable_fields = #model_config.list.fields.select(&:filterable?)
activerecord (3.2.3) lib/active_record/inheritance.rb:119:in `compute_type'
activerecord (3.2.3) lib/active_record/reflection.rb:172:in `klass'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/adapters/active_record.rb:233:in `association_model_lookup'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/adapters/active_record.rb:70:in `block (2 levels) in associations'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:63:in `call'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:63:in `associated_model_config'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:33:in `block in <class:Association>'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/configurable.rb:68:in `instance_eval'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/configurable.rb:68:in `block in register_instance_option'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/configurable.rb:42:in `block in register_instance_option'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/proxyable/proxy.rb:31:in `method_missing'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/has_fields.rb:113:in `select'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/has_fields.rb:113:in `visible_fields'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/proxyable/proxy.rb:31:in `method_missing'
/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/app/views/rails_admin/main/index.html.haml:13:in `__var_www_apps_miracleticket_shared_bundle_ruby_______bundler_gems_rails_admin____e____d__f_app_views_rails_admin_main_index_html_haml___3620510256847226470_59069620'
actionpack (3.2.3) lib/action_view/template.rb:143:in `block in render'
activesupport (3.2.3) lib/active_support/notifications.rb:125:in `instrument'
actionpack (3.2.3) lib/action_view/template.rb:141:in `render'
actionpack (3.2.3) lib/action_view/renderer/template_renderer.rb:47:in `block (2 levels) in render_template'
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actionpack (3.2.3) lib/action_view/renderer/template_renderer.rb:45:in `render_template'
actionpack (3.2.3) lib/action_view/renderer/template_renderer.rb:18:in `render'
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newrelic_rpm (3.5.0.1) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:155:in `render_with_newrelic'
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actionpack (3.2.3) lib/action_view/renderer/renderer.rb:17:in `render'
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actionpack (3.2.3) lib/action_controller/metal/streaming.rb:225:in `_render_template'
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actionpack (3.2.3) lib/action_controller/metal/renderers.rb:28:in `render_to_body'
actionpack (3.2.3) lib/action_controller/metal/compatibility.rb:50:in `render_to_body'
actionpack (3.2.3) lib/abstract_controller/rendering.rb:88:in `render'
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actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.2.3) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/home/shark/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
activesupport (3.2.3) lib/active_support/core_ext/benchmark.rb:5:in `ms'
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activerecord (3.2.3) lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
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/var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/actions/index.rb:32:in `block (2 levels) in <class:Index>'
(eval):8:in `instance_eval'
(eval):8:in `index'
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actionpack (3.2.3) lib/abstract_controller/base.rb:167:in `process_action'
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activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.3) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.3) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.3) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.3) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.3) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
activerecord (3.2.3) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
newrelic_rpm (3.5.0.1) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:34:in `block in process_action'
newrelic_rpm (3.5.0.1) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:268:in `block in perform_action_with_newrelic_trace'
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newrelic_rpm (3.5.0.1) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:263:in `perform_action_with_newrelic_trace'
newrelic_rpm (3.5.0.1) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:33:in `process_action'
actionpack (3.2.3) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.3) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.3) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.3) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.3) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:73:in `call'
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journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:600:in `call'
railties (3.2.3) lib/rails/engine.rb:479:in `call'
railties (3.2.3) lib/rails/railtie/configurable.rb:30:in `method_missing'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:600:in `call'
rack-pjax (0.6.0) lib/rack/pjax.rb:12:in `call'
omniauth (1.1.1) lib/omniauth/strategy.rb:177:in `call!'
omniauth (1.1.1) lib/omniauth/strategy.rb:157:in `call'
newrelic_rpm (3.5.0.1) lib/new_relic/rack/error_collector.rb:8:in `call'
newrelic_rpm (3.5.0.1) lib/new_relic/rack/browser_monitoring.rb:12:in `call'
sass (3.2.2) lib/sass/plugin/rack.rb:54:in `call'
exception_notification (3.0.0) lib/exception_notifier.rb:40:in `call'
warden (1.2.1) lib/warden/manager.rb:35:in `block in call'
warden (1.2.1) lib/warden/manager.rb:34:in `catch'
warden (1.2.1) lib/warden/manager.rb:34:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.1) lib/rack/etag.rb:23:in `call'
rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/head.rb:14:in `call'
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actionpack (3.2.3) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/cookies.rb:338:in `call'
activerecord (3.2.3) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.3) lib/active_record/connection_adapters/abstract/connection_pool.rb:467:in `call'
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rack-cache (1.2) lib/rack/cache/context.rb:136:in `forward'
rack-cache (1.2) lib/rack/cache/context.rb:245:in `fetch'
rack-cache (1.2) lib/rack/cache/context.rb:185:in `lookup'
rack-cache (1.2) lib/rack/cache/context.rb:66:in `call!'
rack-cache (1.2) lib/rack/cache/context.rb:51:in `call'
railties (3.2.3) lib/rails/engine.rb:479:in `call'
railties (3.2.3) lib/rails/application.rb:220:in `call'
railties (3.2.3) lib/rails/railtie/configurable.rb:30:in `method_missing'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/rack/application_spawner.rb:206:in `start_request_handler'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/rack/application_spawner.rb:171:in `block in handle_spawn_application'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/utils.rb:479:in `safe_fork'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/rack/application_spawner.rb:166:in `handle_spawn_application'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server.rb:180:in `start'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/rack/application_spawner.rb:129:in `start'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/spawn_manager.rb:253:in `block (2 levels) in spawn_rack_application'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/spawn_manager.rb:246:in `block in spawn_rack_application'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server_collection.rb:82:in `block in synchronize'
<internal:prelude>:10:in `synchronize'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/spawn_manager.rb:244:in `spawn_rack_application'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/spawn_manager.rb:137:in `spawn_application'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
/home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/helper-scripts/passenger-spawn-server:99:in `<main>'
It looks like some class somewhere is associated with the Delayed::Job class. I'm guessing that you've got the class_name option on that association with Delayed::Job specified. I'm not sure how that would work in practice as Delayed::Job isn't an active record class. You'd really have to associate with the active record backend for delayed jobs (Delayed::Backend::ActiveRecord::Job).
In the first instance it'd be worth commenting out that association and seeing if it works without it. In the second instance it'd be worth rethinking how to associate your users with the jobs being processed.

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