Rails 4：更新宝石后的乘客错误

Question

我遇到了一些奇怪的错误，我一直在摸索好几个小时试图找出这里出了什么问题。

在我的 VPS 上，如果我尝试运行 rails c production，我会收到以下消息：

$ rails c production
/home/dani/.rvm/gems/ruby-2.2.0/bin/rails:23:in `load': cannot load such file -- /home/dani/.rvm/gems/ruby-2.2.0/specifications/bin/rails (LoadError)
    from /home/dani/.rvm/gems/ruby-2.2.0/bin/rails:23:in `<main>'
    from /home/dani/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `eval'
    from /home/dani/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `<main>'

目录/home/dani/.rvm/gems/ruby-2.2.0/specifications/ 存在并包含一堆.gemspec 文件。但是，/home/dani/.rvm/gems/ruby-2.2.0/specifications/bin/ 不存在。

这似乎是第一个问题。

第二个问题是，当我尝试访问我的网站时，我在 Phusion Passenger (nginx) 日志中收到以下错误：

[ 2015-02-09 16:43:59.1936 6175/7f34723ac700 agents/HelperAgent/RequestHandler.h:2306 ]: [Client 20] Cannot checkout session because a spawning error occurred. The identifier of the error is 576137e4. Please see earlier logs for details about the error.
App 29360 stdout:
App 29360 stdout:
[ 2015-02-09 16:44:49.0985 6175/7f3474514700 Pool2/Implementation.cpp:287 ]: Could not spawn process for application /home/dani/asia-gazette: An error occured while starting up the preloader.
  Error ID: c29b4e0c
  Error details saved to: /tmp/passenger-error-qH99US.html
  Message from application: cannot load such file -- rails/all (LoadError)
  /home/dani/asia-gazette/config/application.rb:3:in `require'
  /home/dani/asia-gazette/config/application.rb:3:in `<top (required)>'
  /home/dani/asia-gazette/config/environment.rb:2:in `require'
  /home/dani/asia-gazette/config/environment.rb:2:in `<top (required)>'
  config.ru:3:in `require'
  config.ru:3:in `block in <main>'
  /home/dani/.rvm/gems/ruby-2.2.0/gems/rack-1.6.0/lib/rack/builder.rb:55:in `instance_eval'
  /home/dani/.rvm/gems/ruby-2.2.0/gems/rack-1.6.0/lib/rack/builder.rb:55:in `initialize'
  config.ru:1:in `new'
  config.ru:1:in `<main>'
  /home/dani/.rvm/gems/ruby-2.2.0/gems/passenger-4.0.58/helper-scripts/rack-preloader.rb:112:in `eval'
  /home/dani/.rvm/gems/ruby-2.2.0/gems/passenger-4.0.58/helper-scripts/rack-preloader.rb:112:in `preload_app'
  /home/dani/.rvm/gems/ruby-2.2.0/gems/passenger-4.0.58/helper-scripts/rack-preloader.rb:158:in `<module:App>'
  /home/dani/.rvm/gems/ruby-2.2.0/gems/passenger-4.0.58/helper-scripts/rack-preloader.rb:29:in `<module:PhusionPassenger>'
  /home/dani/.rvm/gems/ruby-2.2.0/gems/passenger-4.0.58/helper-scripts/rack-preloader.rb:28:in `<main>'

这已正确设置，在我今天早上早些时候运行 bundle update 之前一切正常。

这是我的 nginx.conf：

user  www-data;
worker_processes  1;

error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;

events {
    worker_connections  1024;
}

http {
    passenger_root /home/dani/.rvm/gems/ruby-2.2.0/gems/passenger-4.0.58;
    passenger_ruby /home/dani/.rvm/gems/ruby-2.2.0/wrappers/ruby;
    #passenger_debugger on;
    #passenger_log_level 3;
    #passenger_debug_log_file /home/dani/passenger_errors.log;
    #server_names_hash_bucket_size 64;
    include       upstream.conf;
    include       mime.types;
    default_type  application/octet-stream;
    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';
    #access_log  logs/access.log  main;
    sendfile        on;
    #tcp_nopush     on;
    #keepalive_timeout  0;
    keepalive_timeout  65;
    # Catch non-matching server names.
    server {
      return 404;
    }
    include /etc/nginx/sites-enabled/*.conf;
}

bundle show rails 的输出是/home/dani/.rvm/gems/ruby-2.2.0/gems/rails-4.2.0。奇怪的是，cat /home/dani/asia-gazette/.bundle/config 的输出是No such file or directory。

这可能是权限问题吗？

再一次，直到今天早上，这几个月都运行良好。

有什么建议吗？

谢谢！

Answer 1

经过一天的抨击，事实证明这解决了问题：

$ bundle install --deployment --without development test

我不确定这是否是正确的修复，但它似乎让我的应用程序再次运行。我正在使用 Bundler 版本 1.7.13。