ruby-on-rails - rake 中止!您已经激活了 rake 10.0.2，但是您的 Gemfile 需要 rake 0.9.2.2

Question

我正在尝试执行“rake db:migrate”，它给了我这个错误。

Andy:AcademyAir Andy$ rake db:migrate
/Users/Andy/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.2.2/lib/bundler/runtime.rb:197: warning: Insecure world writable dir /usr in PATH, mode 040777
rake aborted!
You have already activated rake 10.0.2, but your Gemfile requires rake 0.9.2.2. Using bundle exec may solve this.
/Users/Andy/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.2.2/lib/bundler/runtime.rb:31:in `block in setup'
/Users/Andy/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.2.2/lib/bundler/runtime.rb:17:in `setup'
/Users/Andy/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.2.2/lib/bundler.rb:116:in `setup'
/Users/Andy/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.2.2/lib/bundler/setup.rb:7:in `<top (required)>'
/Users/Andy/Desktop/AcademyAir/config/boot.rb:6:in `<top (required)>'
/Users/Andy/Desktop/AcademyAir/config/application.rb:1:in `<top (required)>'
/Users/Andy/Desktop/AcademyAir/Rakefile:5:in `<top (required)>'
(See full trace by running task with --trace)

Answer 1

试试这个 bundle exec rake db:migrate
移除 rake 10.0.2 gem

通过使用 gem uninstall rake并删除 10.0.2 rake gem 的版本

然后尝试 rake db:migrate
为什么会出现错误 :在您的 gem 中列出了 rake gem 安装的两个版本(10.0.2 和 0.9.2.2)，因此会出现此错误。*

另一个解决方案是你可以做 bundle update