Rails控制台无法加载，“找不到gem'rails（= 3.0.0.beta3）红宝石”

Question

我输入Rails控制台开始工作，并收到以下错误：

MacBook-Pro:blog agreiner$ rails console
/Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler-1.1.3/lib/bundler/resolver.rb:287:in `resolve': Could not find gem 'rails (= 3.0.0.beta3) ruby' in the gems available on this machine. (Bundler::GemNotFound)
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler 1.1.3/lib/bundler/resolver.rb:161:in `start'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler 1.1.3/lib/bundler/resolver.rb:128:in `block in resolve'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler-1.1.3/lib/bundler/resolver.rb:127:in `catch'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler-1.1.3/lib/bundler/resolver.rb:127:in `resolve'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler-1.1.3/lib/bundler/definition.rb:192:in `resolve'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler 1.1.3/lib/bundler/definition.rb:127:in `specs'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler-1.1.3/lib/bundler/definition.rb:161:in `requested_specs'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler-1.1.3/lib/bundler/environment.rb:23:in `requested_specs'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler 1.1.3/lib/bundler/runtime.rb:11:in `setup'
from /Users/agreiner/.rvm/gems/ruby-1.9.3-p194/gems/bundler-1.1.3/lib/bundler.rb:107:in `setup'
from /Users/agreiner/blog/config/boot.rb:5:in `<top (required)>'
from /Users/agreiner/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/agreiner/.rvm/rubies/ruby 1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from >script/rails:8:in `<main>'

几天前我开始与Rails合作，因此我分析错误的能力仅限于Google的能力。 我尚未找到有关Could not find gem 'rails(=3.0.0beta3) ruby

谁能指出我正确的方向？

Answer 1

看起来rails gem已安装在某个位置，但仅部分卸载或已安装，但安装在意外的位置。 第一步是尝试重新安装。 我不确定您使用的是系统红宝石，还是通过rvm / ruby​​-build安装的系统，因此很难提供更多建议。

Answer 2

它找不到您的rails宝石。 首先尝试：

宝石安装导轨