I met the problem 'uninitialized constant Rake::DSL'.
I have tried to add gem 'rake','0.8.7' in the Gemfile, but it didn't work out. Are there any other way to fix the problem? Thank you!
n177-p118:testapp shuang$ rake db:migrate --trace
(in /Users/shuang/rails/testapp)
rake aborted!
uninitialized constant Rake::DSL
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2503:in `const_missing'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks/documentation.rake:11
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:15:in `load'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:15
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:6:in `each'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:6
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:289:in `require'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:289:in `initialize_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `instance_exec'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `each'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/engine.rb:424:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:145:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `send'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
/Users/shuang/rails/testapp/rakefile:8
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `load'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `raw_load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2017:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2016:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2000:in `run'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:1998:in `run'
/usr/bin/rake:31
This is probably horribly bad form, but adding this to the top of my Rakefile worked for me:
module Rake
module DSL
end
end
Check your gemfile.lock, it must be having a version of rake which is > 0.8.7. If yes then delete all then delete all the instance of the version or delete all the content of gemfile.lock and then do bundle install again.
You can also try to run
bundle exec rake db:migrate
Related
I'm getting this weird error when I try to migrate my database. Does anyone know what's going on?
There are no require debugger calls in any of my migrations. I do have some in another rake task that's not a migration, though. Is it possible that that's the problem?
me$ heroku run rake db:migrate --trace
Running `rake db:migrate --trace` attached to terminal... up, run.2463
rake aborted!
cannot load such file -- debugger
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require'
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
/app/lib/tasks/misc.rake:6:in `<top (required)>'
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:222:in `load'
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:222:in `block in load'
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:222:in `load'
/app/vendor/bundle/ruby/2.1.0/gems/railties-4.0.0/lib/rails/engine.rb:641:in `block in run_tasks_blocks'
/app/vendor/bundle/ruby/2.1.0/gems/railties-4.0.0/lib/rails/engine.rb:641:in `each'
/app/vendor/bundle/ruby/2.1.0/gems/railties-4.0.0/lib/rails/engine.rb:641:in `run_tasks_blocks'
/app/vendor/bundle/ruby/2.1.0/gems/railties-4.0.0/lib/rails/application.rb:244:in `run_tasks_blocks'
/app/vendor/bundle/ruby/2.1.0/gems/railties-4.0.0/lib/rails/engine.rb:446:in `load_tasks'
/app/vendor/bundle/ruby/2.1.0/gems/railties-4.0.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
/app/Rakefile:6:in `<top (required)>'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/rake_module.rb:25:in `load'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/rake_module.rb:25:in `load_rakefile'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/application.rb:637:in `raw_load_rakefile'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/application.rb:94:in `block in load_rakefile'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/application.rb:165:in `standard_exception_handling'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/application.rb:93:in `load_rakefile'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/application.rb:77:in `block in run'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/application.rb:165:in `standard_exception_handling'
/app/vendor/ruby-2.1.0/lib/ruby/2.1.0/rake/application.rb:75:in `run'
/app/bin/rake:4:in `<main>'
Ah, ok. Figured it out. One my other rake tasks had require debugger in its root scope. That's what was throwing heroku off. Problem solved.
I am trying to run rake db:migrate in my Ruby on Rails application.
However, it is giving me a "uninitialized constant" exception. From Googling this, it looks like the solution is to update the rake version. So I changed my gemfile and ran bundle update.
However, the exception is still happening... I think because I didn't update the right rake library.
How do I fix this? How can I update rake for the other path too, or exclusively run rake through the bundle thing?
My-Comp:my_project username$ bundle show rake
/Library/Ruby/Gems/1.8/gems/rake-0.9.2.2
My-Comp:my_project username$ which rake
/usr/bin/rake
My-Comp:my_project username$ rake -V
rake, version 0.8.7
(See - they are not the same!)
My-Comp:my_project username$ rake db:migrate --trace
(in /Users/username/projects/my_project)
rake aborted!
uninitialized constant Rake::DSL
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2503:in `const_missing'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/tasklib.rb:8
/Library/Ruby/Gems/1.8/gems/rdoc-3.12/lib/rdoc/task.rb:37:in `require'
/Library/Ruby/Gems/1.8/gems/rdoc-3.12/lib/rdoc/task.rb:37
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks/documentation.rake:2:in `require'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks/documentation.rake:2
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:15:in `load'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:15
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:6:in `each'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/tasks.rb:6
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:289:in `require'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:289:in `initialize_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `instance_exec'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `each'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie.rb:184:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/engine.rb:424:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:145:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `send'
/Library/Ruby/Gems/1.8/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
/Users/username/projects/my_project/Rakefile:7
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `load'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `raw_load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2017:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2016:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2000:in `run'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:1998:in `run'
/usr/bin/rake:31
Try this command:
bundle exec rake db:migrate
bundle exec executes a command in the context of your gemfile.
Spoiler: It was an outdated version of the rspec-rails gem!
I encountered this error with any rake command issued from my rails project directory after moving my sqlite3 gem into a development block and then running 'rake db:migrate' to make sure everything still worked. Rake works fine elsewhere on my system. But any rake task I run in that directory gives me the following output with the trace:
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rspec-rails-2.0.0.beta.18/lib/rspec/rails/tasks/rspec.rake:3:in `<top (required)>'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rspec-rails-2.0.0.beta.18/lib/rspec-rails.rb:8:in `load'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rspec-rails-2.0.0.beta.18/lib/rspec-rails.rb:8:in `block in <class:Railtie>'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/railtie.rb:183:in `call'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/railtie.rb:183:in `block in load_tasks'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/railtie.rb:183:in `each'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/railtie.rb:183:in `load_tasks'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/engine.rb:396:in `block in load_tasks'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/application/railties.rb:8:in `each'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/application/railties.rb:8:in `all'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/engine.rb:396:in `load_tasks'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/application.rb:103:in `load_tasks'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
/Users/ianyoung/rails/third_app/Rakefile:7:in `<top (required)>'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in `load'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in `load_rakefile'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:501:in `raw_load_rakefile'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:82:in `block in load_rakefile'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:81:in `load_rakefile'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:65:in `block in run'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/bin/rake:33:in `<top (required)>'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in `load'
/Users/ianyoung/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in `<main>'
The first error I got was the question title:
rake aborted! undefined method `prerequisites' for nil:NilClass
I've also been getting this, but it hasn't been causing me problems. Perhaps it's relevant?:
DEPRECATION WARNING: config.generators in Rails::Railtie is deprecated. Please use config.app_generators instead. (called from at /Users/ianyoung/rails/third_app/config/application.rb:13)
DEPRECATION WARNING: config.generators in Rails::Railtie is deprecated. Please use config.app_generators instead. (called from at /Users/ianyoung/rails/third_app/config/application.rb:13)
Updating to the latest rspec-rails gem relieved me of this problem and of the deprecation warnings.
Installing the latest webrat gem solved the missing has_selector? method problem that I had for some reason thought was a greater evil than my outdated rspec-rails gem. And all is well.
Thank you for the helpful comments.
Anyone could help me?
I searched the same problem, but I can't figure out a solution still.
I ran successfully with "bundle update" "bundle install" but when running "rake db:migrate" I got the following problem...
rake aborted!
uninitialized constant Rake::DSL
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/tasklib.rb:8:in `<clas
s:TaskLib>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/tasklib.rb:6:in `<modu
le:Rake>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/tasklib.rb:3:in `<top
(required)>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rdoc-3.11/lib/rdoc/task.rb:37:in `<top (requ
ired)>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/tasks/documentation
.rake:2:in `<top (required)>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/tasks.rb:15:in `blo
ck in <top (required)>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/tasks.rb:6:in `each
'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/tasks.rb:6:in `<top
(required)>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/application.rb:215:
in `initialize_tasks'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/application.rb:139:
in `load_tasks'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/application.rb:77:i
n `method_missing'
C:/F/desktop/Projects/recle/recle/rails/eway/Rakefile:7:in `<top (required)>'
C:/Ruby192/lib/ruby/1.9.1/rake.rb:2373:in `load'
C:/Ruby192/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile'
C:/Ruby192/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile'
C:/Ruby192/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling'
C:/Ruby192/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile'
C:/Ruby192/lib/ruby/1.9.1/rake.rb:1991:in `run'
C:/Ruby192/bin/rake:31:in `<main>'
Put this in your Rakefile above require 'rake':
require 'rake/dsl_definition'
OR if the above solution does not work,
write this in your gemfile for rake
gem "rake", "0.8.7"
and go to command prompt and write.
gem uninstall rake
This will uninstall the existing rake gem.
Then type bundle update in your project folder which will install rake 9.8.7 again.
And enjoy rails :).
Hope this is a simple question for some of you..
I've updated my gems bundle and somehow I can't migrate my db anymore..
This is the full trace:
Supreme:supportactie Supreme$ rake db:migrate --trace
rake aborted!
undefined method `task' for #<Supportactie::Application:0x1037ffa40>
/Library/Ruby/Gems/1.8/gems/railties-3.0.5/lib/rails/application.rb:214:in `initialize_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.0.5/lib/rails/application.rb:139:in `load_tasks'
/Library/Ruby/Gems/1.8/gems/railties-3.0.5/lib/rails/application.rb:77:in `send'
/Library/Ruby/Gems/1.8/gems/railties-3.0.5/lib/rails/application.rb:77:in `method_missing'
/Users/Supreme/Websites/iceworld/supportactie/Rakefile:7
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/rake_module.rb:25:in `load'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/rake_module.rb:25:in `load_rakefile'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/application.rb:495:in `raw_load_rakefile'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/application.rb:78:in `load_rakefile'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/application.rb:129:in `standard_exception_handling'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/application.rb:77:in `load_rakefile'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/application.rb:61:in `run'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/application.rb:129:in `standard_exception_handling'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/lib/rake/application.rb:59:in `run'
/Library/Ruby/Gems/1.8/gems/rake-0.9.0/bin/rake:31
/usr/bin/rake:19:in `load'
/usr/bin/rake:19
Hope someone can help me out, cause I do not have any tables left to work with!
Thanks
It looks like there's a possible answer here.