Ionic 5 ios build on xcode 11

Hi ! I can’t build my app for iOS. It works for android but I got a bug on iOS on “ionic cordova build ios”.

/Users/user/app/myapp/platforms/ios/Fintek/Classes/MainViewController.xib: error: Encountered an error communicating with IBAgent-iOS.
Failure Reason: IBAgent-iOS (8271) failed to launch and exited with status 6
The following build commands failed:
CompileXIB Fintek/Classes/MainViewController.xib
CompileStoryboard Fintek/CDVLaunchScreen.storyboard
(2 failures)
xcodebuild: Command failed with exit code 65
[ERROR] An error occurred while running subprocess cordova.

My configuration

cordova : 9.0.0 (cordova-lib@9.0.1)
ionic : 5.4.5
Xcode : 11.1
macOS Mojave : 10.14.6

thx !

still blocked, any idea …?