Phusion乘客错误：您已激活机架1.2.1，但您的Gemfile需要机架1.2.2 [英] Phusion Passenger Error: You have activated rack 1.2.1, but your Gemfile requires rack 1.2.2

问题描述

我试图在Dreamhost共享服务器上运行Ruby on Rails应用程序。目前为止，除了一个我无法解开的奇怪的错误外。

有时，当我访问web应用程序时，出现Phusion Passenger错误，

您已经启动机架1.2.1，但您的Gemfile需要机架1.2.2。考虑使用bundle exec。

当我刚刚刷新页面时，它似乎能够工作 - 没有更多的Phusion Passenger错误消息。 p>

继其他堆栈溢出线程和类似的

 如果ENV ['RAILS_ENV'] =='生产'＃对开发
不打扰ENV ['GEM_PATH'] ='/ home /myusername/.gems'+'：/usr/lib/ruby/gems/1.8'
结束
  

解决方案

尝试在Gemfile中编辑后重新启动服务器，并放入： gem'rack'，'1.2.1'

I'm trying to run a Ruby on Rails app on a Dreamhost shared server. All is well so far except one weird bug I have not been able to unravel.

Sometimes when I visit the web app, I get presented with a Phusion Passenger error saying,

You have already activated rack 1.2.1, but your Gemfile requires rack 1.2.2. Consider using bundle exec.

When I just refresh the page it seems to work, though - no more Phusion Passenger error message.

Following other stack overflow threads and a similar Dreamhost wiki, I added the following to the top of the config/environment.rb file:

if ENV['RAILS_ENV'] == 'production'  # don't bother on dev
  ENV['GEM_PATH'] = '/home/myusername/.gems' + ':/usr/lib/ruby/gems/1.8'
end

解决方案

try to restart your server after edit in your Gemfile and put this: gem 'rack', '1.2.1'

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