Tag: rack
Ruby on Rails: RubyGem version error: rack(1.0.0 not ~> 1.0.1) (RuntimeError)
by Elton on 2010年03月7日, under Rails
当你升级了rails后，有时候会出现rack版本跟rails版本不匹配的情况。 当你执行./script/generate命令的时候，会出现以下错误信息：
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/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:271:in `require_frameworks‘: RubyGem version error: rack(1.0.0 not ~> 1.0.1) (RuntimeError)
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from /Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:134:in `process’
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from /Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `send‘
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from /Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `run’
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from /Volumes/Data/study/ruby/blog/config/environment.rb:9
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from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require‘
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from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require’
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from /Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/commands/generate.rb:1
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from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require‘
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from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require’
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from ./script/generate:3
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解决方案：
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$ sudo gem uninstall rack
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Select gem to uninstall:
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1. rack-1.0.0
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2. rack-1.1.0
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3. All versions
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> 1
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You have requested to uninstall the gem:
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rack-1.0.0
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actionpack-2.3.5 depends on [rack (~> 1.0.0)]
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actionpack-2.3.4 depends on [rack (~> 1.0.0)]
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If you remove this gems, one or more dependencies will not be met.
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Continue with Uninstall? [Yn] y
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Successfully uninstalled rack-1.0.0
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然后再执行
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sudo gem install -v=2.3.5 rails
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Successfully installed rack-1.0.1
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1 gem installed
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Installing ri documentation for rack-1.0.1…
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Installing RDoc documentation for rack-1.0.1…
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问题解决
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