Ruby on rails 当我在生产环境中部署ror应用程序时，我会遇到以下错误

在

gem\u original\u require\u中：没有要加载的文件--haml（MissingSourceFile）

但这颗宝石已经镶嵌好了

我还有这个路径的插件：-/home/techvant/rails_app/techease/vendor/plugins/haml/init.rb

此初始化文件包含以下代码：-

    begin
         require File.join(File.dirname(__FILE__), 'lib', 'haml') # From here
       rescue LoadError
         require 'haml' # From gem
    end

我需要什么来解决此错误请帮助

下面是错误跟踪

/usr/lib/ruby/site\u ruby/1.8/rubygems/custom\u require.rb:31:in

gem\u original\u require”：没有这样的文件要加载--haml（缺少源文件）来自/usr/lib/ruby/site\u ruby/1.8/rubygems/custom\u require.rb:31:in

require' from/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active\u support/dependencies.rb:156:in

require'from/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active\u support/dependenciences.rb:521:in

new\u constants\u-in' from/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_-support/dependencies.rb:156:in

require'from/home/techvant/rails_-app/techease/vendor/plugins/haml/init.rb:4:in

evaluate_-init\rb' from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin.rb:146:in

evaluate_init_rb'from/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/core_ext/kernel/reporting.rb:11:in

silence\u警告 from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin.rb:142:in

evaluate\u init\u rb'from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin.rb:48:in

load' from/home/techvant/rails_app/techease/config/。/vendor/plugins/sitennija/engines/lib/engines/plugin.rb:77:in

load'from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:38:in

load_plugins' from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:37:in

每个'from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:37:in

加载插件' from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:348:in

load_插件'from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:163:in

process' from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in

send'from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in

run' from/home/techvant/rails_app/techease/config/environment.rb:9 from/usr/lib/ruby/site\u ruby/1.8/rubygems/custom\u require.rb:31:in

gem\u original\u require'from/usr/lib/ruby/site\u ruby/1.8/rubygems/custom\u require.rb:31:in

require' from/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active\u support/dependencies.rb:156:in

require'from/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active\u support/dependenciences.rb:521:in

new\u constants\u-in' from/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active\u support/dependencies.rb:156:in

require'from/usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/commands/server.rb:84 from/usr/lib/ruby/site\u ruby/1.8/rubygems/custom\u require.rb:31:in
from/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in'require'
从脚本/服务器：3

尝试：

gem更新轨道

…在服务器上，而不是在您的开发机器上
您可以尝试解压缩gem，使其位于rails应用程序目录中，这将消除rails应用程序对系统中本地gem的依赖。干杯
 既然haml是一颗宝石，我就把它放在environment.rb中：

config.gem 'haml'

然后，解包并将其添加到回购协议中：

rake gems:install
rake gems:unpack

最后，删除已有的haml插件引用
 我在这个问题上也遇到了很多麻烦。以下是我最终解决这个问题的步骤

首先，安装gem

放

在environment.rb文件中。实际上，我不得不把它放在我的environments/development.rb和environments/production.rb（等等）中，因为它抱怨不知道rails_env。这不是最优的，但它起了作用。
然后跑

rake gems:install

然后

然后重新启动rails服务器。
通过删除
“
这解决了什么问题吗？您使用的是什么版本的rails？
rake gems:install

mkdir -p /vendor/plugins/haml
cp vendor/gems/haml-2.2.0/init.rb /vendor/plugins/haml/init.rb