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我在我的Rails應用程序中使用Mail Catcher,當我嘗試啓動服務器或運行rake db時:遷移我正在獲取跟隨錯誤。無法激活瘦(〜> 1.5.0),已激活瘦-1.7.0
/Users/harshamv/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.13.2/lib/bundler/rubygems_integration.rb:346:in `block (2 levels) in replace_gem': can't activate thin (~> 1.5.0), already activated thin-1.7.0. Make sure all dependencies are added to Gemfile. (Gem::LoadError)