Error on pod install

Question

I have a working project the uses a pod file for some weeks now. When I learned that some of my pods have update I tried to \'pod install\' on got this weird error

Answer 1

If you need a clean master spec repo you can try

cd ~/.cocoapods/master
git reset --hard

or if you're on CocoaPods 0.23+, use ~/.cocoapods/repos/master.