permission Denied whil installing activeadmin - ruby-on-rails

I am trying to use activeadmin in my Rails app.But when i try to install activeadmin it throws 'permission denied' error.
I have added in my Gemfile.
gem 'activeadmin', github: 'activeadmin'
When I run 'rails generate active_admin:install'
I get the following error
**/home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions/inject_into_file.rb:101:in `initialize': Permission denied # rb_sysopen - /home/cbls-2/academics/office_management/config/routes.rb (Errno::EACCES)**
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions/inject_into_file.rb:101:in `open'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions/inject_into_file.rb:101:in `replace!'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions/inject_into_file.rb:59:in `invoke!'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions.rb:94:in `action'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions/inject_into_file.rb:30:in `insert_into_file'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/generators/actions.rb:224:in `block in route'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions.rb:194:in `block in in_root'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions.rb:184:in `block in inside'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/2.3.0/fileutils.rb:128:in `chdir'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/2.3.0/fileutils.rb:128:in `cd'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions.rb:184:in `inside'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/actions.rb:194:in `in_root'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/generators/actions.rb:223:in `route'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/devise-4.1.0/lib/generators/devise/devise_generator.rb:22:in `add_devise_routes'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:115:in `invoke'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/bundler/gems/activeadmin-70cfbf3d7d33/lib/generators/active_admin/devise/devise_generator.rb:39:in `create_admin_user'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:115:in `invoke'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/group.rb:277:in `block in _invoke_for_class_method'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/shell.rb:68:in `with_padding'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/group.rb:266:in `_invoke_for_class_method'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/group.rb:133:in `_invoke_from_option_users'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/generators.rb:157:in `invoke'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/generate.rb:13:in `<top (required)>'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:123:in `require_command!'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:130:in `generate_or_destroy'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:50:in `generate'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/cbls-2/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:9:in `require'
from bin/rails:9:in `<main>'

Try running
sudo chown -R youruser ~/.rbenv

Related

How do I give permissions to this file?

I am trying to install the react-rails gem to my project. When I type
rails g react:install
/home/leboroz/.rbenv/versions/3.1.1/lib/ruby/3.1.0/fileutils.rb:243:in `mkdir': Permission denied # dir_s_mkdir - /components (Errno::EACCES)
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/3.1.0/fileutils.rb:243:in `fu_mkdir'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/3.1.0/fileutils.rb:221:in `block (2 levels) in mkdir_p'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/3.1.0/fileutils.rb:219:in `reverse_each'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/3.1.0/fileutils.rb:219:in `block in mkdir_p'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/3.1.0/fileutils.rb:211:in `each'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/3.1.0/fileutils.rb:211:in `mkdir_p'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/actions/empty_directory.rb:52:in `block in invoke!'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/actions/empty_directory.rb:117:in `invoke_with_conflict_check'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/actions/empty_directory.rb:50:in `invoke!'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/actions.rb:93:in `action'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/actions/empty_directory.rb:14:in `empty_directory'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/react-rails-2.6.0/lib/generators/react/install_generator.rb:26:in `create_directory'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/invocation.rb:134:in `block in invoke_all'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/invocation.rb:134:in `each'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/invocation.rb:134:in `map'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/invocation.rb:134:in `invoke_all'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/group.rb:232:in `dispatch'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/base.rb:485:in `start'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.3/lib/rails/generators.rb:263:in `invoke'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.3/lib/rails/commands/generate/generate_command.rb:26:in `perform'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.3/lib/rails/command/base.rb:87:in `perform'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.3/lib/rails/command.rb:48:in `invoke'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.3/lib/rails/commands.rb:18:in `<main>'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
from /home/leboroz/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
from bin/rails:4:in `<main>'
I get this error. I tried
$ sudo chown -R [user] ~/.rbenv
I have windows with WSL ubuntu22.04.1
Ruby3.1.1

rails 5 - could could not generate rspec:install

I am trying to build restful api using rails
I am following the blog link tutorial to work out
https://scotch.io/tutorials/build-a-restful-json-api-with-rails-5-part-one
but when i run this following command
rails generate rspec:install
It generates the following error
identical .rspec
exist spec
create spec/C:/Users/Shad Munir/AppData/Local/Temp/d20170503-6768-l4n0e9/spec/spec_helper.rb
C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:253:in `mkdir': Invalid argument # dir_s_mkdir - E:/todos-api/spec/C: (Errno::EINVAL)
from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:253:in `fu_mkdir'
from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:227:in `block (2 levels) in mkdir_p'
from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:225:in `reverse_each'
from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:225:in `block in mkdir_p'
from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:211:in `each'
from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:211:in `mkdir_p'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/create_file.rb:61:in `block in invoke!'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/empty_directory.rb:116:in `invoke_with_conflict_check'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/create_file.rb:60:in `invoke!'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions.rb:95:in `action'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/create_file.rb:25:in `create_file'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/file_manipulation.rb:27:in `copy_file'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/directory.rb:94:in `block in execute!'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/directory.rb:80:in `each'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/directory.rb:80:in `execute!'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/directory.rb:66:in `invoke!'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions.rb:95:in `action'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/actions/directory.rb:52:in `directory'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/rspec-rails-3.5.2/lib/generators/rspec/install/install_generator.rb:23:in `block in copy_spec_files'
from C:/Ruby23-x64/lib/ruby/2.3.0/tmpdir.rb:89:in `mktmpdir'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/rspec-rails-3.5.2/lib/generators/rspec/install/install_generator.rb:20:in `copy_spec_files'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/command.rb:27:in `run'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/invocation.rb:126:in `invoke_command'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/invocation.rb:133:in `block in invoke_all'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/invocation.rb:133:in `each'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/invocation.rb:133:in `map'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/invocation.rb:133:in `invoke_all'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/group.rb:232:in `dispatch'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.19.4/lib/thor/base.rb:444:in `start'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/generators.rb:180:in `invoke'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/generate.rb:13:in `<top (required)>'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in `require'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in `block in require'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:259:in `load_dependency'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in `require'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:138:in `require_command!'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:145:in `generate_or_destroy'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:60:in `generate'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
I tried some related solution from stack overflow but none of them is working .
I had this same problem a couple of days ago. What I had to do was delete all versions of RSpec from my machine and then run bundle install. This installed the latest version of RSpec and everything was good afterwards.

Error when tyring to create a rails app

When reaching step 4 of this guide, which is to create a new rails app:
http://installfest.railsbridge.org/installfest/create_a_rails_app
the following output is recieved, along with my rails app not being created:
create
/home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/fileutils.rb:252:in `mkdir': Permission denied # dir_s_mkdir - /home/salpal/railsbridge/test_app (Errno::EACCES)
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/fileutils.rb:252:in `fu_mkdir'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/fileutils.rb:226:in `block (2 levels) in mkdir_p'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/fileutils.rb:224:in `reverse_each'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/fileutils.rb:224:in `block in mkdir_p'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/fileutils.rb:210:in `each'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/fileutils.rb:210:in `mkdir_p'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:50:in `block in invoke!'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:116:in `call'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:116:in `invoke_with_conflict_check'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:49:in `invoke!'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/actions.rb:94:in `action'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:14:in `empty_directory'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/generators/app_base.rb:138:in `create_root'
from (eval):1:in `create_root'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/commands/application.rb:17:in `<top (required)>'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/lib/rails/cli.rb:14:in `<top (required)>'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /home/salpal/.rvm/rubies/ruby-2.2.4/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /home/salpal/.rvm/gems/ruby-2.2.4/gems/railties-4.2.5/bin/rails:9:in `<top (required)>'
from /home/salpal/.rvm/gems/ruby-2.2.4/bin/rails:23:in `load'
from /home/salpal/.rvm/gems/ruby-2.2.4/bin/rails:23:in `<main>'
from /home/salpal/.rvm/gems/ruby-2.2.4/bin/ruby_executable_hooks:15:in `eval'
from /home/salpal/.rvm/gems/ruby-2.2.4/bin/ruby_executable_hooks:15:in `<main>'
Does anyone know a reason for this? Any help would be much appreciated!

Rails mountable Engine + Devise

I am doing Authentication app using Devise (as Engine). I followed the steps from this link every thing goes perfectly until i reach the command
rails generate devise MODEL
from the above link after this command it shows some errors
invoke active_record
create db/migrate/20140901111733_devise_create_fd_users.rb
/Users/user/.rvm/gems/ruby-1.9.3-p547/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:541:in `retrieve_connection': ActiveRecord::ConnectionNotEstablished (ActiveRecord::ConnectionNotEstablished)
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/activerecord-4.1.5/lib/active_record/connection_handling.rb:113:in `retrieve_connection'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/activerecord-4.1.5/lib/active_record/connection_handling.rb:87:in `connection'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/devise-3.3.0/lib/generators/active_record/devise_generator.rb:86:in `postgresql?'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/devise-3.3.0/lib/generators/active_record/devise_generator.rb:78:in `inet?'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/devise-3.3.0/lib/generators/active_record/devise_generator.rb:74:in `ip_column'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/devise-3.3.0/lib/generators/active_record/devise_generator.rb:56:in `migration_data'
from (erb):4:in `migration_template'
from /Users/user/.rvm/rubies/ruby-1.9.3-p547/lib/ruby/1.9.1/erb.rb:838:in `eval'
from /Users/user/.rvm/rubies/ruby-1.9.3-p547/lib/ruby/1.9.1/erb.rb:838:in `result'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/migration.rb:64:in `block in migration_template'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/create_file.rb:53:in `call'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/create_file.rb:53:in `render'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/create_file.rb:62:in `block (2 levels) in invoke!'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/create_file.rb:62:in `open'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/create_file.rb:62:in `block in invoke!'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:116:in `call'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:116:in `invoke_with_conflict_check'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions/create_file.rb:60:in `invoke!'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/actions.rb:94:in `action'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/migration.rb:34:in `create_migration'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/migration.rb:63:in `migration_template'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/devise-3.3.0/lib/generators/active_record/devise_generator.rb:16:in `copy_devise_migration'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:115:in `invoke'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:277:in `block in _invoke_for_class_method'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/shell.rb:68:in `with_padding'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:266:in `_invoke_for_class_method'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:149:in `_invoke_from_option_orm'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators.rb:157:in `invoke'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/commands/generate.rb:11:in `<top (required)>'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `block in require'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
from /Users/user/.rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/engine/commands.rb:19:in `<top (required)>'
from bin/rails:12:in `require'
from bin/rails:12:in `<main>'
I thought Database connection not established properly so i tested using the command
rails generate model Test name:string email:string
its working properly, then i gave
rake db:migrate
Now database also migrated successfully, so i think database connection is properly working. The commands mentioned above were run from Engine's Directory. If any information needed comment it out i will provide the details. Thanks
Use devise 3.2.x instead of devise 3.3.x

Broken rails environment: can't run rails generate scaffold

I have a mystery: My rvm/ruby-1.9.2 environment, running rails 3.1.3, can no longer run this command
rails generate scaffold Game name:string difficulty:string
I get the following dump after a 'method missing' failure
kenb#stargate:~/development/sudoku$ rails g scaffold Game name:string difficulty:string
invoke active_record
/home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/base.rb:1088:in `method_missing': undefined method `mass_assignment_sanitizer=' for ActiveRecord::Base:Class (NoMethodError)
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railtie.rb:59:in `block (3 levels) in <class:Railtie>'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railtie.rb:58:in `each'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railtie.rb:58:in `block (2 levels) in <class:Railtie>'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:42:in `each'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/base.rb:2190:in `<top (required)>'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/generators/named_base.rb:165:in `pluralize_table_names?'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/generators/named_base.rb:112:in `table_name'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/rails/generators/active_record/model/model_generator.rb:17:in `create_migration_file'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:109:in `invoke'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:269:in `block in _invoke_for_class_method'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/shell.rb:74:in `with_padding'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:258:in `_invoke_for_class_method'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:150:in `_invoke_from_option_orm'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/base.rb:389:in `start'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/generators.rb:168:in `invoke'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/commands/generate.rb:12:in `<top (required)>'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `block in require'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `block in load_dependency'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:640:in `new_constants_in'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/commands.rb:28:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
I have gone so far as to remove rvm and all dependent gems, re-install rvm, ruby-1.9.2, and then run 'bundle install' in my app folder. All goes well. Then, I get a failure on the generate command.
According to http://apidock.com/rails/ActiveModel/MassAssignmentSecurity/ClassMethods/mass_assignment_sanitizer%3D mass_assignment_sanitizer was introduced in rails 3.2, while you are using 3.1.3. Haven't you generated you project with rails 3.2?

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