is not used in any concrete target

重装了mac,使用cocoa pods的时候发生错误

提示  

The dependency `MJExtension` is not used in any concrete target.

然后加上两句话就可以了,有问题的也可以试试:

target 'myapp' do

end

把 需要安装的库放在这两句话中间就可以了, myapp 就是自己项目对应的名字

target ‘MedicalConsult’ do

pod 'AFNetworking', '~> 3.0'
pod 'MJExtension'

end