i-Life Games is the name of your game, right?
Click on the error and it should open the pods-debug.xconfig file
Ignore the "// DO NOT MODIFY -- auto-generated by Apache Cordova" warning
Remove the "#include "Pods/Target Support Files/Pods-i-Life/Pods-i-Life Games.debug.xcconfig" entry.
Now try to build the project again.
This happens to me when I export from C3 as an Xcode project but not if I export as a Cordova project and build the Xcode project myself using "cordova prepare" as per:
construct.net/en/tutorials/building-mobile-apps-locally-21
I do this for production so I can insert this plugin which hides iOS's home indicator bar:
github.com/chipbell4/cordova-plugin-hide-home-indicator
But for testing, to save a few clicks, it's easier for me to export as Xcode and delete that line from the pods-debug.xconfig file.