flutter - use tools:overrideLibrary="io.flutter.plugins.camera" - flutter

Question

While implementing camera in flutter I face this problem with manifest file
android\app\src\main\AndroidManifest.xml Error:
uses-sdk:minSdkVersion 16 cannot be smaller than version 21 declared in library [:camera] D:\My Files\flutter-apps\login\build\camera\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml as the library might be using APIs not available in 16
Suggestion: use a compatible library with a minSdk of at most 16,
or increase this project's minSdk version to at least 21,
or use tools:overrideLibrary="io.flutter.plugins.camera" to force usage (may lead to runtime failures)
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processDebugManifest'.
> Manifest merger failed : uses-sdk:minSdkVersion 16 cannot be smaller than version 21 declared in library [:camera] D:\My Files\flutter-apps\login\build\camera\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml as the library might be using APIs not available in 16
Suggestion: use a compatible library with a minSdk of at most 16,
or increase this project's minSdk version to at least 21,
or use tools:overrideLibrary="io.flutter.plugins.camera" to force usage (may lead to runtime failures)**strong text**

Answer 1

If you want to use camera plugin you need to update your Flutter Android minSdkVersion to 21 in your android build.gradle file located here:
./android/app/build.gradle
This how it should be:
defaultConfig {
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
applicationId "com.example.my_flutter_app"
minSdkVersion 21
targetSdkVersion 27
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
If you look at the plugin page, yuo can see they also tell you what to do.