Can not run on device, but simulator can work well

Xcode's output: 
↳ 
note: Using new build system 
note: Building targets in parallel 
note: Planning build 
note: Constructing build description
error: Building for iOS Simulator, but the linked and embedded framework 'App.framework' was built for iOS. (in target 'Runner' from project 'Runner')
​
Could not build the application for the simulator.
Error launching application on iPhone 11.

Condition

Xcode >= 11.4

Quick Solved

rm -rf ios/Flutter/App.framework

Run this command and run project again.

Official Solved

​https://flutter.dev/docs/development/ios-project-migration​

1. From the Flutter app directory, open ios/Runner.xcworkspace in Xcode.

2. In the Navigator pane, locate the Flutter group and remove App.framework and Flutter.framework. ​​​

3. In the Runner target build settings Build Phases > Link Binary With Libraries confirm App.framework and Flutter.framework are no longer present. Also confirm in Build Phases > Embed Frameworks.

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4. Change the Runner target build settings Build Phases > Thin Binary script as follows:

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" thin

​​​​

5. In the Runner target Build Settings > Other Linker Flags

(OTHER_LDFLAGS) add $(inherited) -framework Flutter

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Hope it helps!