在Ubuntu上安装Ruby / Rubygems错误

Question

我正在尝试按照“ 如何使用RVM在Ubuntu 12.04 LTS（精确的穿山甲）上安装Ruby on Rails ”中的步骤进行操作。

一切正常，直到这里：

gabi@ubuntu:~$ rvm rubygems current
Removing old Rubygems files...
Installing rubygems-1.8.25 for ruby-1.9.3-p385 ...
Error running 'env GEM_PATH=/home/gabi/.rvm/gems/ruby-1.9.3-p385:/home/gabi/.rvm/gems/ruby-1.9.3-p385@global:/home/gabi/.rvm/gems/ruby-1.9.3-p385:/home/gabi/.rvm/gems/ruby-1.9.3-p385@global GEM_HOME=/home/gabi/.rvm/gems/ruby-1.9.3-p385 /home/gabi/.rvm/rubies/ruby-1.9.3-p385/bin/ruby /home/gabi/.rvm/src/rubygems-1.8.25/setup.rb', please read /home/gabi/.rvm/log/ruby-1.9.3-p385/rubygems.install.log
Installation of rubygems did not complete successfully.

日志文件如下所示：

/home/gabi/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/yaml.rb:36:in `remove_method': method `to_yaml' not defined in Object (Nam
eError)
  from /home/gabi/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/yaml.rb:36:in `yamler='
  from /home/gabi/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/yaml.rb:33:in `class_eval'
  from /home/gabi/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/yaml.rb:33:in `yamler='
  from /home/gabi/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/yaml.rb:76:in `<top (required)>'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems/custom_require.rb:36:in `require'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems/custom_require.rb:36:in `require'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems.rb:680:in `load_yaml'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems/config_file.rb:249:in `load_file'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems/config_file.rb:190:in `initialize'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems/gem_runner.rb:78:in `new'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems/gem_runner.rb:78:in `do_configuration'
  from /home/gabi/.rvm/src/rubygems-1.8.25/lib/rubygems/gem_runner.rb:51:in `run'
  from setup.rb:38:in `<main>'

到底是什么问题，我该如何解决？

Answer 1

不确定是什么问题，我认为安装时出了点问题，但是我设法通过使用此处的快速修复使其工作：

1. 使用以下rvm get head更新RVM： rvm get head
2. 使用以下rvm pkg remove删除所有手动安装的软件包： rvm pkg remove
3. 使用以下rvm requirements run安装所需的库： rvm requirements run
4. 使用以下rvm reinstall 1.9.3安装Ruby： rvm reinstall 1.9.3

Answer 2

我唯一能想到的就是您使用的是错误的Ruby版本。 如果您使用的是rm ，请输入rvm current ，看看它是否为Ruby 1.9。