Sass:：SyntaxError:未定义的变量："$fa css前缀“；

我正在尝试将当前主题集成到我的rails应用程序中。在我跑的时候，他在催促我

rake assets:precompile --trace

我得到以下错误

** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
** Execute assets:precompile
rake aborted!
Sass::SyntaxError: Undefined variable: "$fa-css-prefix".
/home/munam/projects/infotachus/ror/nutritious_dec_28/app/assets/stylesheets/_animated.scss:4
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/script/tree/variable.rb:49:in `_perform'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/script/tree/node.rb:50:in `perform'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/script/tree/interpolation.rb:170:in `_perform'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/script/tree/node.rb:50:in `perform'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:540:in `block in run_interp_no_strip'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:538:in `map'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:538:in `run_interp_no_strip'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:545:in `run_interp'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:410:in `visit_rule'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/base.rb:36:in `visit'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/stack.rb:79:in `block in with_base'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/stack.rb:115:in `with_frame'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/stack.rb:79:in `with_base'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:158:in `visit'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/base.rb:52:in `map'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/base.rb:52:in `visit_children'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:167:in `block in visit_children'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:166:in `visit_children'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/base.rb:36:in `block in visit'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:186:in `visit_root'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/base.rb:36:in `visit'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:157:in `visit'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/visitors/perform.rb:8:in `visit'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/root_node.rb:36:in `css_tree'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/tree/root_node.rb:20:in `render'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sass-3.4.20/lib/sass/engine.rb:278:in `render'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/sass_processor.rb:74:in `block in call'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/utils.rb:154:in `module_include'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/sass_processor.rb:73:in `call'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/sass_processor.rb:30:in `call'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:75:in `call_processor'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:57:in `block in call_processors'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:56:in `reverse_each'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:56:in `call_processors'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:134:in `load_from_unloaded'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:60:in `block in load'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:318:in `fetch_asset_from_dependency_cache'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:44:in `load'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/cached_environment.rb:20:in `block in initialize'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/cached_environment.rb:47:in `yield'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/cached_environment.rb:47:in `load'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/bundle.rb:23:in `block in call'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/utils.rb:183:in `dfs'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/bundle.rb:24:in `call'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:75:in `call_processor'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:57:in `block in call_processors'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:56:in `reverse_each'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/processor_utils.rb:56:in `call_processors'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:134:in `load_from_unloaded'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:60:in `block in load'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:318:in `fetch_asset_from_dependency_cache'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/loader.rb:44:in `load'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/cached_environment.rb:20:in `block in initialize'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/cached_environment.rb:47:in `yield'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/cached_environment.rb:47:in `load'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/base.rb:66:in `find_asset'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/base.rb:73:in `find_all_linked_assets'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/manifest.rb:142:in `block in find'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/legacy.rb:114:in `block (2 levels) in logical_paths'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/path_utils.rb:225:in `block in stat_tree'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/path_utils.rb:209:in `block in stat_directory'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/path_utils.rb:206:in `each'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/path_utils.rb:206:in `stat_directory'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/path_utils.rb:224:in `stat_tree'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/legacy.rb:105:in `each'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/legacy.rb:105:in `block in logical_paths'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/legacy.rb:104:in `each'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/legacy.rb:104:in `logical_paths'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/manifest.rb:140:in `find'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/sprockets/manifest.rb:168:in `compile'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-rails-3.0.0/lib/sprockets/rails/task.rb:68:in `block (3 levels) in define'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-3.5.2/lib/rake/sprocketstask.rb:147:in `with_logger'
/home/munam/.rvm/gems/ruby-2.2.3@Nutritious/gems/sprockets-rails-3.0.0/lib/sprockets/rails/task.rb:67:in `block (2 levels) in define'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/task.rb:240:in `call'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/task.rb:240:in `block in execute'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/task.rb:235:in `each'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/task.rb:235:in `execute'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/task.rb:179:in `block in invoke_with_call_chain'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/task.rb:172:in `invoke_with_call_chain'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/task.rb:165:in `invoke'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:150:in `invoke_task'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:106:in `block (2 levels) in top_level'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:106:in `each'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:106:in `block in top_level'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:115:in `run_with_threads'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:100:in `top_level'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:78:in `block in run'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:176:in `standard_exception_handling'
/home/munam/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/rake/application.rb:75:in `run'
/home/munam/.rvm/rubies/ruby-2.2.3/bin/rake:33:in `<main>'

我的config/initializers/assets.rb中的这一行

Rails.application.config.assets.precompile += [/.*\.png/,/.*\.ico/,/.*\.jpg/,/.*\.js/,/.*\.scss/]

---

我尝试了stackoverflow和github上的所有线程，但在我的情况下似乎没有任何效果。寻找什么还不清楚。任何帮助都会非常好。非常感谢

您只需要在

GEM文件中引用一次：

gem 'font-awesome-rails', '~> 4.5'

--

至于错误，这意味着您试图在声明变量之前调用它

因为这是一个
font-awesome
错误，我推测这是因为您在
Gemfile
中包含了3个不同的宝石

扔掉所有的宝石，除了我上面提到的那颗

您还需要在CSS管道中包含相关的
font-awesome
文件：

#app/assets/stylesheets/application.css
 *
   *= require font-awesome
   *= require_tree .
   *= require_self
 */

如果您使用的是SCS而不是css，只需在config/application.rb中添加这些行即可

config.assets.precompile << %w( *.scss *.js )

即使这样做，config.assets.precompile问题仍然存在。有两种字体，一种是.css，另一种是.scss。您在哪里找到这些
.css
文件？它们不应该出现在你的应用程序中；它们是由字体本身添加的这些都在我的应用程序/资产/样式表中..实际上有三个文件1.css 2.scss 3.less删除它们并再次尝试删除所有三个文件，运行捆绑，然后预编译并获得此错误--Sprocket:：FileNotFound:找不到类型为“text/css”的文件“font-awesome”
#app/assets/stylesheets/application.css
 *
   *= require font-awesome
   *= require_tree .
   *= require_self
 */

config.assets.precompile << %w( *.scss *.js )