I\'ve been trying to figure this out, but there doesn\'t seem to be any light at the end of the tunnel, thus trying it here...hope you can help.
I have an Ionic proj
Hope this is still helpful.
It’s time to prepare the project to be opened in XCODE. However Ionic-Cordova doesn’t support the NEW build system of XCODE. So the project has to be prepared for the Legacy build system. Pitfall #2. Important! Disconnect your iPhone or iPad device connected to the Mac or the following command won’t work!!! Pitfall #3.
ionic cordova build ios --prod --buildFlag='-UseModernBuildSystem=0'
Congrats! Your MyApp.xcodeproj(ect) file is ready. You’re almost half way to have an IPA uploaded. Just double click on the Myapp.xcodeproj file or open it through XCODE.
XCODE bugs and Cordova not supporting properly the new building system leads to all these issues. I made a full guide showing how to fix them after lurking hours. Hope it helps!