Ruby on rails 乘客无法生成应用程序的进程
我已使用Ruby on rails 乘客无法生成应用程序的进程,ruby-on-rails,apache,passenger,bundler,centos7,Ruby On Rails,Apache,Passenger,Bundler,Centos7,我已使用bundle--standalone在CentOS 7上部署了我的webapp，并使用.bundle/config将该应用配置为使用正确的gems。当我使用rails服务器时，它工作得很好，但是当我遇到以下错误时： [ 2016-02-02 13:27:50.7037 5134/7fb8225b8700 age/Cor/App/Implementation.cpp:304 ]: Could not spawn process for application /var/www/rails-
bundle--standalone.bundle/configrails服务器时，它工作得很好，但是当我遇到以下错误时：
[ 2016-02-02 13:27:50.7037 5134/7fb8225b8700 age/Cor/App/Implementation.cpp:304 ]: Could not spawn process for application /var/www/rails-web: An error occurred while starting up the preloader. It exited before signalling successful startup back to Phusion Passenger.
Error ID: 7b0eafb9
Error details saved to: /tmp/passenger-error-YR2EzW.html
Message from application: An error occurred while starting up the preloader. It exited before signalling successful startup back to Phusion Passenger. Please read <a href="https://github.com/phusion/passenger/wiki/Debugging-application-startup-problems">this article</a> for more information about this problem.<br>
<h2>Raw process output:</h2>
<pre>
/usr/share/rubygems/rubygems/path_support.rb:68:in `path=': undefined method `+' for nil:NilClass (NoMethodError)
from /usr/share/rubygems/rubygems/path_support.rb:30:in `initialize'
from /usr/share/rubygems/rubygems.rb:357:in `new'
from /usr/share/rubygems/rubygems.rb:357:in `paths'
from /usr/share/rubygems/rubygems.rb:379:in `path'
from /usr/share/rubygems/rubygems/specification.rb:794:in `dirs'
from /usr/share/rubygems/rubygems/specification.rb:658:in `each_normal'
from /usr/share/rubygems/rubygems/specification.rb:669:in `_all'
from /usr/share/rubygems/rubygems/specification.rb:822:in `each'
from /usr/share/rubygems/rubygems/specification.rb:864:in `find'
from /usr/share/rubygems/rubygems/specification.rb:864:in `find_inactive_by_path'
from /usr/share/rubygems/rubygems.rb:175:in `try_activate'
from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:132:in `rescue in require'
from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:144:in `require'
from <internal:abrt_prelude>:2:in `<compiled>'
</pre>
[2016-02-02 13:27:50.7037 5134/7fb8225b8700 age/Cor/App/Implementation.cpp:304]：无法为应用程序/var/www/rails web生成进程：启动预加载程序时出错。它在向Phusion乘客发出成功启动信号之前退出。
错误ID:7b0eafb9
错误详细信息保存到：/tmp/passenger-Error-YR2EzW.html
来自应用程序的消息：启动预加载程序时出错。它在向Phusion乘客发出成功启动信号之前退出。有关此问题的更多信息，请阅读。
原始过程输出：
/usr/share/rubygems/rubygems/path_support.rb:68:in`path=&apos；：未定义的方法“+&apos；对于nil:NilClass（nomethoderor）
from/usr/share/rubygems/rubygems/path_support.rb:30:in`initialize&apos；
from/usr/share/rubygems/rubygems.rb:357:in'new&apos；
from/usr/share/rubygems/rubygems.rb:357:in`path&apos；
from/usr/share/rubygems/rubygems.rb:379:in`path&apos；
from/usr/share/rubygems/rubygems/specification.rb:794:in`dirs&apos；
from/usr/share/rubygems/rubygems/specification.rb:658:in'each_normal&apos；
from/usr/share/rubygems/rubygems/specification.rb:669:in``u all&apos；
from/usr/share/rubygems/rubygems/specification.rb:822:in`each&apos；
from/usr/share/rubygems/rubygems/specification.rb:864:in'find&apos；
from/usr/share/rubygems/rubygems/specification.rb:864:in'find_inactive_by_path&apos；
from/usr/share/rubygems/rubygems.rb:175:in'try_activate&apos；
从/usr/share/rubygems/rubygems/core\u ext/kernel\u require.rb:132:in ` rescue in require&apos；
from/usr/share/rubygems/rubygems/core\u ext/kernel\u require.rb:144:in`require&apos；
来自《内部》：阿布特•鲁前奏曲：2:in‘compiled&apos；
有关路径支持的代码。rb:68/home//.gem/ruby/home/