[!] Unable to add a source with url git@github.com:CocoaPods/Specs.git named master-1. You can try adding it manually in ~/.cocoapods/repos
git@github.com:CocoaPods/Specs.git
master-1
~/.cocoapods/repos
Please Follow this steps:
Open Terminal
1] sudo xcode-select -r
2] Xcode-->Preferences-->Locations-->Command line tool --> set your Current Xcode Version.
3] Edit Podfile and save
4] pod install
Thats it.