Flutter: Paketinstallationsfehler: Fehler [INSTALL_FAILED_OLDER_SDK] ⇐ Android

[Anonymous]

Mein aktuelles Geräte-SDK ist 21. Ich habe versucht, minSdk manuell von build.gradle auf 21 zu ändern. Wenn ich Flutter Clean ausführe, wechselt Flutter Run It zurück zu den Standardversionen. Ich habe versucht, es in der Datei „local.properties“ zu ändern, es funktioniert immer noch nicht.
Dies ist mein aktueller Code.

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defaultConfig {
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
applicationId = "com.example.learning_app"
// You can update the following values to match your application needs.
// For more information, see: https://flutter.dev/to/review-gradle-config.
minSdk = flutter.minSdkVersion
targetSdk = 21
versionCode = flutter.versionCode
versionName = flutter.versionName
}

Ich habe diese Lösung ausprobiert und sie in local.properties geändert

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sdk.dir=C:\\Users\\Lenovo\\AppData\\Local\\Android\\sdk
flutter.sdk=C:\\flutter
flutter.minSdkVersion=21
flutter.buildMode=debug
flutter.versionName=1.0.0
flutter.versionCode=1

aber ich bekomme diese Fehlermeldung.

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Warning: Flutter support for your project's minimum Android SDK (flavor='debug') version (23) will soon be dropped. Please upgrade your      minimum Android SDK (flavor='debug') version to a version of at least 24 soon.
Alternatively, use the flag "--android-skip-build-dependency-validation" to bypass this check.

Potential fix: Your project's minimum Android SDK version is typically defined in the android block of the app-level `build.gradle(.kts)` file (C:\flutter_projects\learning_app\android/app/build.gradle(.kts)).

Ich habe versucht, flutter run --android-skip-build-dependency-validation auszuführen, habe aber immer noch den gleichen Fehler erhalten.
Ich habe auch versucht, es von C:\flutter\packages\flutter_tools\gradle\src\main\kotlin
in dieser Datei FlutterExtension.kt zu ändern, habe aber immer noch diesen Fehler erhalten

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FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:DebugMinSdkCheck'.
> com.flutter.gradle.DependencyValidationException: Error: Your project's minimum Android SDK (flavor='debug') version (21) is lower than Flutter's minimum supported version of 23. Please upgrade your minimum Android SDK (flavor='debug') version.
Alternatively, use the flag "--android-skip-build-dependency-validation" to bypass this check.

Potential fix: Your project's minimum Android SDK version is typically defined in the android block of the app-level `build.gradle(.kts)` file (C:\flutter_projects\learning_app\android/app/build.gradle(.kts)).