so I used Venmo/Synx on my Xcode project with CocoaPods, and it completely screwed everything up.
I was able to fix the Manifest.lock and Podfile.lock errors, but now I
1- Remove your Pods folder Podfile.lock and xcworkspace files root in your project.
Pods
Podfile.lock
xcworkspace
2- Open .xcodeproj
.xcodeproj
3- Go to Build Settings and under Build Options search Always Embed Swift Standard Libraries
Always Embed Swift Standard Libraries
4- Update its value with $(inherited)
$(inherited)
5- Close project and pod install again
pod install