Flutter: Runner.app/Info.plist does not exist. The Flutter "Thin Binary" build phase must run after "Copy Bundle Resources"
In Xcode Menu, choose "Product" > "Clean Build Folder".
Run the project again, it solved the issue.
Solution
Go to Runner(target app) > Build Phases > Run Script and update the run script with the one below.
/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build.Also, verify that Runner(target app) > Build Phases > Thin Binary contains below scripts as suggested in XCode 11.4 Support by the flutter team.
/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" thin
There are 2 steps to fix the issue after turn on your terminal window:
-You must navigate to your project folder that you already build with Flutter-Then you will run as below :
$ flutter clean
$ flutter pub get
Then you build with the IOS simulator again. The issue will be solved.
Reason:You have a clash between Xcode versions (old-new) in your app folder. You should clean the old one first and then rebuild it with the new one.