cocoaPods pod install Permission denied

Question

This is the short version:

When I run

pod install 

in an Xcode project I get

[!] Pod::Executable pull erro

Answer 1

Removing the directories worked for me:

sudo rm -R  ~/Library/Caches/CocoaPods
sudo rm -R  ~/.cocoapods/repos

If some other problems still exist.

Remove the Pods directory and the podFile.lock file.

Cocoapods just adds the directories again.