ruby-on-rails – Rails不使用正确版本的Ruby

新的信息

这是rails控制台发生的情况：

Loading development environment (Rails 3.1.1)
ruby-1.9.2-p290 :001 > RUBY_VERSION
 => "1.8.7"

这里有一些非常奇怪的事情 – 提示说1.9.2,但RUBY_VERSION显示1.8.7.

我正在使用RVM,但我在Ubuntu上遇到Rails问题.

$which ruby
/home/nick/.rvm/rubies/ruby-1.9.2-p290/bin/ruby

$rvm list
rvm rubies
=> ruby-1.9.2-p290 [ i686 ]

但如果我做宝石env我得到

RubyGems Environment:
  - RUBYGEMS VERSION: 1.8.11
  - RUBY VERSION: 1.8.7 (2011-06-30 patchlevel 352) [i686-linux]
  - INSTALLATION DIRECTORY: /home/nick/.rvm/gems/ruby-1.9.2-p290
  - RUBY EXECUTABLE: /usr/bin/ruby1.8
  - EXECUTABLE DIRECTORY: /home/nick/.rvm/gems/ruby-1.9.2-p290/bin

当我运行Rails,如果我放RUBY_VERSION它输出1.8.7.

事实上,在irb中,RUBY_VERSION给出了1.9.2,但在rails控制台中它给出了1.8.7.

主要的问题是,当它获取到JSON样式的散列文字时,它是失败的.

我已经尝试过卸载rvm,rails,bundler等的各种方法,但似乎没有任何效果.有任何想法吗？

编辑：

这是rvm信息的输出：

ruby-1.9.2-p290:

  system:
    uname:       "Linux ubie 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 i686 i386 GNU/Linux"
    bash:        "/bin/bash => GNU bash,version 4.2.10(1)-release (i686-pc-linux-gnu)"
    zsh:         " => not installed"

  rvm:
    version:      "rvm 1.8.6 by Wayne E. Seguin ([e-mail]) [https://rvm.beginrescueend.com/]"

  ruby:
    interpreter:  "ruby"
    version:      "1.9.2p290"
    date:         "2011-07-09"
    platform:     "i686-linux"
    patchlevel:   "2011-07-09 revision 32553"
    full_version: "ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]"

  homes:
    gem:          "/home/nick/.rvm/gems/ruby-1.9.2-p290"
    ruby:         "/home/nick/.rvm/rubies/ruby-1.9.2-p290"

  binaries:
    ruby:         "/home/nick/.rvm/rubies/ruby-1.9.2-p290/bin/ruby"
    irb:          "/home/nick/.rvm/rubies/ruby-1.9.2-p290/bin/irb"
    gem:          "/home/nick/.rvm/rubies/ruby-1.9.2-p290/bin/gem"
    rake:         "/home/nick/.rvm/gems/ruby-1.9.2-p290/bin/rake"

  environment:
    PATH:         "/home/nick/.rvm/gems/ruby-1.9.2-p290/bin:/home/nick/.rvm/gems/ruby-1.9.2-p290@global/bin:/home/nick/.rvm/rubies/ruby-1.9.2-p290/bin:/home/nick/.rvm/bin:/home/nick/local/node/bin:/home/nick/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
    GEM_HOME:     "/home/nick/.rvm/gems/ruby-1.9.2-p290"
    GEM_PATH:     "/home/nick/.rvm/gems/ruby-1.9.2-p290:/home/nick/.rvm/gems/ruby-1.9.2-p290@global"
    MY_RUBY_HOME: "/home/nick/.rvm/rubies/ruby-1.9.2-p290"
    IRBRC:        "/home/nick/.rvm/rubies/ruby-1.9.2-p290/.irbrc"
    RUBYOPT:      ""
    gemset:       ""

但是,仍然gem env告诉我,在RubyGems环境中,Ruby版本是1.8.7.我只是不明白

解决方法

你应该设置默认的ruby像：

rvm use 1.9.2 --default

这将覆盖使用rvm一个的系统安装的ruby.

更新：

notme,谢谢你的发言

默认情况下,双引号连字符设置默认的ruby是很重要的.

下面列出详细&自我解释的例子,享受：

$ruby -v
ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-linux]

$rvm list
rvm rubies

   ruby-1.9.2-p290 [ i386 ]

$rvm use 1.9.2 --default
Using /usr/local/rvm/gems/ruby-1.9.2-p290

$rvm list default

Default Ruby (for new shells)

   ruby-1.9.2-p290 [ i386 ]

$rvm use default
Using /usr/local/rvm/gems/ruby-1.9.2-p290

$ruby -v
ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]

$rvm list 

rvm rubies

=> ruby-1.9.2-p290 [ i386 ]

原文地址：https://www.jb51.cc/ruby/266545.html