Question

我是Ruby / Rails的新手，我一直试图在OSX Mavericks下安装Rails，但我一直收到以下错误：

user_name$ gem install rails
/Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/psych.rb:205:in `parse': (<unknown>): mapping values are not allowed in this context at line 2 column 29 (Psych::SyntaxError)
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/psych.rb:205:in `parse_stream'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/psych.rb:153:in `parse'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/psych.rb:129:in `load'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/config_file.rb:333:in `load_file'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/config_file.rb:198:in `initialize'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/gem_runner.rb:74:in `new'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/gem_runner.rb:74:in `do_configuration'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/gem_runner.rb:39:in `run'
    from /Users/user_name/.rvm/rubies/ruby-2.0.0-p451/bin/gem:21:in `<main>'

我尝试删除RVM并重新安装，但我似乎无法找到导致此错误的原因。所有研究似乎都表明这个问题与YAML有关，但我还没有开始一个项目，所以如果它解析YAML它必须是一个内部例程。当我尝试切换ruby版本时，我收到相同的消息。

rvm use ruby-2.1.1

我重新安装了Xcode，RVM，Ruby和Homebrew，但我一直遇到同样的错误。我已经对错误中提到的所有.rb文件运行了ruby -c，它们都返回了语法OK。我错过了什么？

Answer 1

您的gem配置文件（ .gemrc ）似乎不是有效的yaml ，并导致解析错误。

尝试修复 .gemrc 文件中的错误，或者将其删除，然后重试。

尝试在OSX Mavericks上安装Rails时收到Psych :: Syntax错误

1 个答案: