NoMethodError:未定义的方法`[]'为nil:NilClass推送到Heroku时

Question

Rails noob在这里.

我推到Heroku时遇到了一个问题(NoMethodError:未定义的方法`[]'为nil:NilClass).我甚至不确定我应该在哪里开始寻找纠正这个问题.

remote: -----> Preparing app for Rails asset pipeline
remote:        Running: rake assets:precompile
remote:        I, [2015-10-04T23:27:47.570225 #397]  INFO -- : Writing /tmp/build_1a2df3ea1a8121d7fba6ab542c59ba85/public/assets/application-7fbbda11565ec9a0d53aaeb338357988655d4d81476f99312f8a66772c63bea9.js
remote:        rake aborted!
remote:        NoMethodError: undefined method `[]' for nil:NilClass
remote:        /tmp/build_1a2df3ea1a8121d7fba6ab542c59ba85/vendor/bundle/ruby/2.2.0/gems/sprockets-3.3.5/lib/sprockets/sass_processor.rb:266:in `sprockets_context'
remote:        

Answer 1

我能够通过将application.css文件重命名为application.css.scss来解决此问题.