Rails 4.2.5.1: NoMethodError: undefined method `paths' for nil:NilClass

[samstarling]

I'm getting the following error after upgrading from Rails 4.2.5 to 4.2.5.1.

Any ideas what might be wrong?

NoMethodError: undefined method `paths' for nil:NilClass
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/requirejs-rails-1.0.0/lib/tasks/requirejs-rails_tasks.rake:55:in `block (2 levels) in <top (required)>'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:240:in `call'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:240:in `block in execute'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `execute'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:201:in `block in invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:178:in `block in invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:201:in `block in invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:178:in `block in invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:201:in `block in invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:178:in `block in invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:165:in `invoke'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:150:in `invoke_task'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `block in top_level'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:115:in `run_with_threads'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:100:in `top_level'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:78:in `block in run'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:176:in `standard_exception_handling'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:75:in `run'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/bin/rake:33:in `<top (required)>'
/Users/samstarling/.rbenv/versions/2.2.0/bin/rake:23:in `load'
/Users/samstarling/.rbenv/versions/2.2.0/bin/rake:23:in `<main>'
Tasks: TOP => requirejs:precompile:all => requirejs:precompile:digestify_and_compress => requirejs:precompile:run_rjs => requirejs:setup
rake aborted!
Command failed with status (1): [/Users/samstarling/.rbenv/versions/2.2.0/b...]
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/file_utils.rb:66:in `block in create_shell_runner'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/file_utils.rb:57:in `call'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/file_utils.rb:57:in `sh'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/file_utils_ext.rb:37:in `sh'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/file_utils.rb:94:in `ruby'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/file_utils_ext.rb:37:in `ruby'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/requirejs-rails-1.0.0/lib/tasks/requirejs-rails_tasks.rake:18:in `ruby_rake_task'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/requirejs-rails-1.0.0/lib/tasks/requirejs-rails_tasks.rake:83:in `block (3 levels) in <top (required)>'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:240:in `call'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:240:in `block in execute'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `execute'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:201:in `block in invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:199:in `invoke_prerequisites'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:178:in `block in invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/task.rb:165:in `invoke'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:150:in `invoke_task'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `each'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `block in top_level'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:115:in `run_with_threads'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:100:in `top_level'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:78:in `block in run'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:176:in `standard_exception_handling'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/lib/rake/application.rb:75:in `run'
/Users/samstarling/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rake-10.5.0/bin/rake:33:in `<top (required)>'
/Users/samstarling/.rbenv/versions/2.2.0/bin/rake:23:in `load'
/Users/samstarling/.rbenv/versions/2.2.0/bin/rake:23:in `<main>'
Tasks: TOP => assets:precompile => requires:precompile:external

[IceDragon200]

@samstarling I had a similar issue some time back, try downgrading your version of sprocket-rails to 2.x, that fixed it for me

[samstarling]

@IceDragon200 You're right - downgrading sprockets-rails to 2.3.3 fixed this.

[AntiFish03]

This seems to be the issue. rails/sprockets-rails#237

[carsomyr]

Thanks all for the reports. I'm looking to have a fix out in the upcoming week.

[jankeesvw]

I have the same issue... Hope this can get fixed!

[jankeesvw]

I'm running still running into this problem, I upgraded Rails to 4.2.6 which depends on sprockets (>= 3.0.0). Is there a way to hotfix this so I can deploy my security updates?

[jankeesvw]

When I try to downgrade sprockets-rails to 2.3.3 I run into these kinds of errors:

Bundler could not find compatible versions for gem "tilt":
  In snapshot (Gemfile.lock):
    tilt (= 2.0.1)

  In Gemfile:
    haml was resolved to 4.0.7, which depends on
      tilt

    sass-rails (~> 5.0) was resolved to 5.0.4, which depends on
      tilt (< 3, >= 1.1)

    delayed_job_web was resolved to 1.2.10, which depends on
      sinatra (>= 1.4.4) was resolved to 1.4.6, which depends on
        tilt (< 3, >= 1.3)

    sprockets (= 2.3.3) was resolved to 2.3.3, which depends on
      tilt (!= 1.3.0, ~> 1.1)

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.

I tried downgrading a lot of gems, but bundler can't seem to solve the dependency issues. @carsomyr are you working on a fix? I would love to help!

[carsomyr]

All, I've been very busy lately delivering a major feature. I'll try to look into this on Saturday.

[jankeesvw]

No problem @carsomyr, if you need a hand let me know. For now I removed this Gem and switched to using plain require-js, so the urgency is gone for me.