此黄瓜错误消息是什么意思？

cucumber features

Using the default profile...

can\'t activate builder (~> 2.1.2, runtime) for 
    [\"activemodel-3.0.5\", \"actionpack-3.0.5\", \"railties-3.0.5\"],
already activated builder-3.0.0 for
    [\"cucumber-0.10.2\"] (Gem::LoadError)

$ gem uninstall builder

$ bundle

$ gem install builder --version \"<2.2\"