Ruby on Rails Rake资产：预编译错误
我是Rails开发的新手，这是我第一次部署到Heroku。 当我执行我的应用程序（部署后）时出现错误：
2011-09-18T21:05:54+00:00 app[web.1]: Completed 500 Internal Server Error in 10ms 2011-09-18T21:05:54+00:00 app[web.1]: 2011-09-18T21:05:54+00:00 app[web.1]: ActionView::Template::Error (application.css isn't precompiled): 我搜索了这个，发现我必须预编译我的资产，但是当我尝试这样做时，我发现了另一个错误：
$ bundle exec rake assets:precompile RAILS_ENV=production rake aborted! No such process - /usr/lib/ruby/gems/1.8/gems/pg-0.11.0/lib/pg_ext.so (See full trace by running task with --trace)
我还没有找到解决这个问题的方法。 是否有人知道如何解决这个问题？
我也遇到了这个问题，我通过执行以下操作解决了这个问题：
打开config/environments/production.rb并确保将以下选项设置为true ：
# Don't fallback to assets pipeline if a precompiled asset is missed config.assets.compile = true
然后运行：
rake assets:precompile --trace RAILS_ENV=production
希望这可以帮助！
凯文〜
我也遇到了这个问题。 但是你可以
rake assets:precompile RAILS_ENV=production
在本地，并通过公共/资产推送到heroku。 它已经解决了。
我建议使用新的Cedar堆栈 。 它在部署时为您预编译资产，并且使用Rails 3.1整体播放更好，尽管您需要配置您的应用程序一些工作：向您的Gemfile添加一些gem并创建一个Procfile。 但它仍然是一种更容易的方式。
哦，这很简单。 你的PGgem正在打破你的佣金任务。 您可以选择漫长的路径来尝试修复它，也可以尝试从gemfile中注释掉它以运行预编译。
是的，就像Simpleton上面发布的PGgem造成的问题。 Imo更好的解决方案是将PG gem放在gemfile中生成并运行; bundle install –without production然后你应该能够毫无问题地运行rake任务
我有相同的错误消息。 我的问题是错误指定的字体url。
这个答案的大部分内容显示了我如何理解它。
虽然我没有得到资产的路径但它在运行时失败了
RAILS_ENV=production SECRET_KEY_BASE=xxx rake assets:precompile --trace
相反，我有这个堆栈跟踪：
** Invoke assets:precompile (first_time) ** Invoke assets:environment (first_time) ** Execute assets:environment ** Invoke environment (first_time) ** Execute environment ** Execute assets:precompile rake aborted! NoMethodError: undefined method `[]' for nil:NilClass /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:283:in `sprockets_context' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:124:in `asset_path' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:142:in `asset_url' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:214:in `font_url' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:143:in `_perform' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/node.rb:58:in `perform' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/list_literal.rb:63:in `block in _perform' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/list_literal.rb:63:in `map' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/list_literal.rb:63:in `_perform' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/node.rb:58:in `perform' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:397:in `visit_prop' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block (2 levels) in visit_rule' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `map' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block in visit_rule' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:431:in `visit_rule' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `block in visit_children' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `map' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `visit_children' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:169:in `block in visit_children' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:168:in `visit_children' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `block in visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:188:in `visit_root' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:159:in `visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:8:in `visit' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/root_node.rb:36:in `css_tree' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/root_node.rb:20:in `render' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/engine.rb:281:in `render' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_compressor.rb:48:in `call' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_compressor.rb:28:in `call' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:75:in `call_processor' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:57:in `block in call_processors' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:56:in `reverse_each' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:56:in `call_processors' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:134:in `load_from_unloaded' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:60:in `block in load' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:317:in `fetch_asset_from_dependency_cache' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:44:in `load' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/cached_environment.rb:20:in `block in initialize' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/cached_environment.rb:47:in `load' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/base.rb:66:in `find_asset' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/base.rb:73:in `find_all_linked_assets' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/manifest.rb:142:in `block in find' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:114:in `block (2 levels) in logical_paths' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:228:in `block in stat_tree' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:212:in `block in stat_directory' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:209:in `each' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:209:in `stat_directory' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:227:in `stat_tree' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:105:in `each' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:105:in `block in logical_paths' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:104:in `each' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:104:in `logical_paths' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/manifest.rb:140:in `find' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/manifest.rb:185:in `compile' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-rails-3.1.1/lib/sprockets/rails/task.rb:68:in `block (3 levels) in define' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/rake/sprocketstask.rb:147:in `with_logger' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-rails-3.1.1/lib/sprockets/rails/task.rb:67:in `block (2 levels) in define' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:248:in `block in execute' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:243:in `each' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:243:in `execute' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:187:in `block in invoke_with_call_chain' /Users/smithd98/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:180:in `invoke_with_call_chain' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:173:in `invoke' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:152:in `invoke_task' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:108:in `block (2 levels) in top_level' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:108:in `each' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:108:in `block in top_level' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:117:in `run_with_threads' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:102:in `top_level' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:80:in `block in run' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:178:in `standard_exception_handling' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:77:in `run' /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/exe/rake:27:in `' /Users/smithd98/.rvm/gems/ruby-2.3.1/bin/rake:23:in `load' /Users/smithd98/.rvm/gems/ruby-2.3.1/bin/rake:23:in `' /Users/smithd98/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `eval' /Users/smithd98/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in ` '
我修改了gem以吐出文件名
subl /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:124:in
像这样
def asset_path(path, options = {}) path = path.value puts path puts '123' path, _, query, fragment = URI.split(path)[5..8] puts '126' path = sprockets_context.asset_path(path, options) puts '128' query = "?#{query}" if query puts '130' fragment = "##{fragment}" if fragment puts '132' Autoload::Sass::Script::String.new("#{path}#{query}#{fragment}", :string) end
然后当我跑
RAILS_ENV=production SECRET_KEY_BASE=xxx rake assets:precompile --trace
我有
** Invoke assets:precompile (first_time) ** Invoke assets:environment (first_time) ** Execute assets:environment ** Invoke environment (first_time) ** Execute environment ** Execute assets:precompile fonts/OpenSans-Light.ttf 123 126 rake aborted! NoMethodError: undefined method `[]' for nil:NilClass /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:283:in `sprockets_context' ...the rest of the stack trace is the same...
然后我发现问题是一个字体被指定如下：
.btn-rect { font-family: 'OpenSans-Light'; src:font-url('fonts/OpenSans-Light.ttf') format('truetype'); }
应该是这样的：
.btn-rect { font-family: 'OpenSans-Light'; }
而不是config.assets.compile = true使用config.serve_static_assets = true
第一个选项不正确，因为它告诉您的服务器返回服务app / assets文件夹。