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Editorial Team
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Asked: 2026-06-14T02:20:24+00:00

Whenever I run rake assets:precompile , I get a manifest.yml file that looks like:

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Whenever I run rake assets:precompile, I get a manifest.yml file that looks like:

--- {}

Something must be going wrong. Here is my output for rake assets:precompile --trace:

** Invoke assets:precompile (first_time)
** Execute assets:precompile
/Users/user/.rvm/rubies/ruby-1.9.3-p194/bin/ruby /Users/user/.rvm/gems/ruby-1.9.3-p194@global/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets --trace
** Invoke assets:precompile:all (first_time)
** Execute assets:precompile:all
** Invoke assets:precompile:primary (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke tmp:cache:clear (first_time)
** Execute tmp:cache:clear
** Execute assets:precompile:primary
** Invoke assets:precompile:nondigest (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke tmp:cache:clear (first_time)
** Execute tmp:cache:clear
** Execute assets:precompile:nondigest

Can someone help?? Thanks!

UPDATE:

Feel free to look at my code at http://www.github.com/sambaek/novulty

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1 Answer

  1. Editorial Team

    When I run rake assets:precompile for your application I get the following output

    ➜  novulty git:(master) ✗ rake assets:precompile                     
/Users/deefour/.rbenv/versions/1.9.3-p125/bin/ruby /Users/deefour/.rbenv/versions/1.9.3-p125/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
rake aborted!
Undefined variable: "$baseLineHeight".
  (in /Users/deefour/.rbenv/versions/1.9.3-p125/gemsets/novulty/gems/bootstrap-sass-2.1.0.1/vendor/assets/stylesheets/bootstrap/_accordion.scss)

Tasks: TOP => assets:precompile:primary
(See full trace by running task with --trace)
rake aborted!
Command failed with status (1): [/Users/deefour/.rbenv/versions/1.9.3-p125/...]

Tasks: TOP => assets:precompile
(See full trace by running task with --trace)
rake assets:precompile  12.50s user 1.21s system 99% cpu 13.744 total

    I’m not sure what your intention is, but you have

    • app/asssets/bootstrap.min.css being included in app/assets/application.css
    • gem 'bootstrap-sass' in your Gemfile which appears to cause bootstrap-sass-2.1.0.1/vendor/assets/stylesheets/bootstrap/_accordion.scss (among other files) to be added to your pipeline even though they’re not included in require lines in app/assets/application.css

    It seems like you have the bootstrap gem included to use it’s Javascript plugins, but are trying to omit the SASS files in favor of the hard-coded, minified CSS file?

    In any event, the error I get says that the $baseLineHeight SASS variable is not defined for a line in that gem file’s asset – an asset you otherwise appear to ignore (from the best I can tell).

    I then did the following

    1. Commented out the bootstrap-sass gem in your Gemfile

      #gem 'bootstrap-sass'

    2. Ran bundle

    3. Ran rake assets:clean

    4. Removed the following require lines from your app/assets/application.js because they were coming from the bootstrap-sass gem I removed in 1. above

      //= require bootstrap-transition
//= require bootstrap-button
//= require bootstrap-carousel
//= require bootstrap-collapse
//= require bootstrap-tab

    5. Ran rake assets:precompile

    This results in the following public/assets/manifest.yml.

    I think you need to either of the following

    • Use the bootstrap-sass gem as intended. Include the SASS files in your app/assets/application.css (doing this it a bit outside the scope of this question)
    • Get rid of the bootstrap-sass gem as I have above, and include the necessary Javascript files as assets in your vendor/assets/javascripts directory (which is where app/assets/stylesheets/bootstrap.min.css belongs too – vendor/assets/stylesheets)
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