一致的测试错误（Rspec核心2.14.5）

Question

I'm going through Mhartl's tutorial and I'm sporadically getting this error when I run tests in the sublime text 2 console. If I use bundle exec rspec/rspec in the the terminal it works fine, but it's not the case when call shortcut commands in sublime text to run tests. I don't know if it makes a difference but I'm also running guard

Users/User/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:33:in `block in setup': You have already activated rspec-core 2.14.5, but your Gemfile requires rspec-core 2.13.1. Using bundle exec may solve this. (Gem::LoadError)

I tried searching stack overflow for solutions and tried bundle exec rake db:migrate(I normally don't specify bundle exec) as well as bundle exec rake test:prepare. Neither of which work.

I'd appreciate not only an answer to the problem but perhaps a more in-depth answer of when to use rake db:migrate and rake test:prepare. I know their main uses, but there are perhaps some less obvious times where i would need to run it. SPecifically, for this problem I would have thought rake test:prepare would be relevant and I'm still not sure what effect rake db:migrate has on the testing suite/rspec part of the application

Answer 1

为了回答您的部分问题，您可以通过bundle clean删除未使用的gem，尽管当我有多个版本的gem时，我发现我必须使用bundle clean --force ，这可能意味着我拥有了“系统gems”按照https://stackoverflow.com/a/10190608/1008891来使用 。