Rails - 迁移突然不起作用

当我尝试运行迁移时，My Rails应用突然停止工作。例如：Rails - 迁移突然不起作用

$ rails generate migration AddBalanceToUsers balance:float 
/Users/serg/.rvm/gems/ree-1.8.7-head/gems/rails-2.3.5/bin/../lib/rails_generator/options.rb:32:in `default_options': undefined method `write_inheritable_attribute' for Rails::Generator::Base:Class (NoMethodError) 
    from /Users/serg/.rvm/gems/ree-1.8.7-head/gems/rails-2.3.5/bin/../lib/rails_generator/base.rb:90 
    from /Users/serg/.rvm/rubies/ree-1.8.7-head/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require' 
    from /Users/serg/.rvm/rubies/ree-1.8.7-head/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require' 
    from /Users/serg/.rvm/gems/ree-1.8.7-head/gems/rails-2.3.5/bin/../lib/rails_generator.rb:34 
    from /Users/serg/.rvm/rubies/ree-1.8.7-head/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require' 
    from /Users/serg/.rvm/rubies/ree-1.8.7-head/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require' 
    from /Users/serg/.rvm/gems/ree-1.8.7-head/gems/rails-2.3.5/bin/rails:14 
    from /Users/serg/.rvm/gems/ree-1.8.7-head/bin/rails:19:in `load' 
    from /Users/serg/.rvm/gems/ree-1.8.7-head/bin/rails:19

我用

ree 1.8.7 
rails 2.3.5 (but i also have rails 3.2.3) 
RVM 
OS X Lion

来源

2012-07-06 ExiRe

检查类似的问题： - http://stackoverflow.com/questions/5849332/rails-is破坏后升级到ubuntu-11-04 – 2012-07-06 11:16:49

@Shamithc我试过：'gem uninstall rails'，然后'gem install rails -v = 2.3.5'但我仍然有这样的问题 – ExiRe 2012-07-06 11:35:12

你可以更新轨道到2.3.8并测试。 – 2012-07-06 12:06:37

好吧，我创办的解决方案。在梁2我们应该通过其他方式产生的迁移：

$ script/generate migration AddBalanceToUsers balance:float

脚本/生成是关键。

希望它能帮助别人。

来源

2012-07-06 12:03:38 ExiRe

我按照以下步骤解决这个问题： -

（1）首先我检查通过运行 '宝石环境'

（2）然后，我所在的可执行导轨： -
ABC @ ubuntu：〜$ locate rails | grep -e“bin/rails $” /home/abc/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.1/bin/rails /usr/lib/ruby/vendor_ruby/railties/bin/rails

（3）我附加了〜/ .bashrc的路径： -
abc @ ubuntu：〜$ echo'export PATH = $ PATH：/home/abc/.rvm/gems/ruby-1.9.3-0/gems/railties-.2.1/bin'>>〜/ .bashrc

（4）重新加载〜/ .bashrc文件： -
abc @ ubuntu：〜$。在〜/ .bashrc

，然后当我跑到铁轨命令，它创造了一个新的示例应用程序完美:-)

来源

2012-07-06 12:21:16

Rails - 迁移突然不起作用

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