Ionic app does not work in IOS

while testing on xcode ipad simulator the app crashes at splashscreen, terminating uncaught exception of type NSException

I removed & added all plugins in ios environment but the issue remains same

This seems to be xcode 10 compatibility issue as stated here

The app runs fine on the device but not on xcode 10, testing would become nightmare if all need to depend on prod builds

There is a new build system in Xcode 10. You need to set a flag to NOT use the new build system.