When I run my swift 3.2 code with Xcode 9 beta 4 this is the error I get:
*** Terminating app due to uncaught exception \'com.firebase.core\', reason: \'[FIRAp
Remove the Google-Info.plist file from your project and try to add it from your project folder's option menu.
Google-Info.plist
EDIT: this is how you remove a plist file Xcode 10 Error: Multiple commands produce