在RVM下使用Ruby 1.9.2运行Rails时出错

Question

当我在RVM下使用Ruby 1.9.2时尝试运行Rails应用程序时,出现以下错误:

/Users/purinkle/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find rails (>= 0) amongst [rake-0.9.2] (Gem::LoadError)
        from /Users/purinkle/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
        from /Users/purinkle/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems.rb:1182:in `gem'
        from /Users/purinkle/.rvm/rubies/ruby-1.9.2-p290/bin/rails:18:in `<main>'

如果我尝试在使用Ruby 1.8.7时运行相同的命令,一切正常.

为什么会这样？

Answer 1

我是新手,但我可以说你错过了与Ruby 1.9.2相关的Rails的安装.

去检查 :

rails --version

要尝试解决此问题,请为Ruby 1.9.2重新安装rails:

gem install rails