I have been building an iOS app with Google AdMob with CocoaPods. Now, I am stuck with the error, "not found library for -lGoogleUtilities-library", for a while. Some people have answered this question before (Xcode and Unity missing library 'lGoogleUtilities'), which a developer should open the .xcodeworkspace file instead of the .xcodeproject file. I know a lot of people solved their issues in this way, but this error still appears in my .xcodeworkspace file.
Supplemental info:
Swift 4.2
Xcode 10.15.10
Screenshots:
