当我尝试将我的应用程序推送到Heroku时，它失败了，我收到了这个错误：
Running: rake assets:precompile
rake aborted!
Sass::SyntaxError: Invalid CSS after "...AwesomeEotPath:": expected pseudoclass or pseudoelement, was " 'fontawesome-..."
(in /tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/app/assets/stylesheets/application.css)
(sass):7150
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1147:in `expected'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1085:in `expected'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1067:in `expr!'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:794:in `pseudo'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:672:in `simple_selector_sequence'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:640:in `_selector'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:619:in `selector'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:155:in `directive'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:553:in `block_child'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:546:in `block_contents'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:82:in `stylesheet'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:27:in `parse'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/engine.rb:342:in `_to_tree'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/engine.rb:315:in `_render'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sass-3.2.19/lib/sass/engine.rb:262:in `render'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/sass_compressor.rb:24:in `evaluate'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/context.rb:197:in `block in evaluate'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/context.rb:194:in `each'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/context.rb:194:in `evaluate'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/bundled_asset.rb:25:in `initialize'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/base.rb:377:in `new'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/base.rb:377:in `build_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/index.rb:94:in `block in build_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/caching.rb:58:in `cache_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/index.rb:93:in `build_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/base.rb:287:in `find_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/index.rb:61:in `find_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:211:in `block in find_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:257:in `benchmark'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:210:in `find_asset'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:119:in `block in compile'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:118:in `each'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:118:in `compile'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-rails-2.0.1/lib/sprockets/rails/task.rb:60:in `block (3 levels) in define'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-2.11.0/lib/rake/sprocketstask.rb:146:in `with_logger'
/tmp/build_dff3b836-b2e8-484b-a8ea-cdcf1febef51/vendor/bundle/ruby/2.0.0/gems/sprockets-rails-2.0.1/lib/sprockets/rails/task.rb:59:in `block (2 levels) in define'
Tasks: TOP => assets:precompile
(See full trace by running task with --trace)
!
! Precompiling assets failed.
应用程序将加载，但我的资产都没有加载。我的 application.css
/*
* This is a manifest file that'll be compiled into application.css, which will include all the files
* listed below.
*
* Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
* or vendor/assets/stylesheets of plugins, if any, can be referenced here using a relative path.
*
* You're free to add application-wide styles to this file and they'll appear at the top of the
* compiled file, but it's generally better to create a new file per style scope.
*
*= require_self
*= require_tree .
*/
.table td.center, .table th.center {
text-align: center;
}
我不太清楚这里发生了什么，或者如何解决这个问题。任何帮助将不胜感激。
答案 0 :(得分：1)
错误在于：
Sass :: SyntaxError：＆＃34之后的CSS无效; ... AwesomeEotPath：＆＃34;：预期 伪类或伪元素，是＆＃34; ＆＃39; fontawesome -...＆＃34;
您的问题是您正在尝试加载SASS预处理器无法理解的方法。看起来有问题的方法是AwesomeEotPath，但我无法在不看到违规代码的情况下确定。
当您对资产进行预编译时，它基本上会将asset manifest（文件顶部的require部分）中的所有内容都包含在内，并将它们编译为application.css（或任何您的文件被叫）
您提到的文件结构如下：
/*
*= require_self
*= require_tree .
*/
我建议您的错误是由您的文件中包含的require_tree .个问题之一引起的。你应该发布任何其他CSS文件＆amp;您在应用中拥有的CSS依赖项。例如，如果您调用font-awesome-rails gem，则可能必须禁用此
如果您发布其他CSS＆amp; Gemfile，我们会更好地帮助你