수업대로 진행하다가 앱 중지하고 다시 run 했는데 실행이 안됩니다

C:\flutter\mymemo_admob\android\app\src\debug\AndroidManifest.xml Error:

uses-sdk:minSdkVersion 16 cannot be smaller than version 19 declared in library [:google_mobile_ads] C:\flutter\mymemo_admob\build\google_mobile_ads\intermediates\merged_manifest\debug\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 19,

or use tools:overrideLibrary="io.flutter.plugins.googlemobileads" to force usage (may lead to runtime failures)

FAILURE: Build failed with an exception.

* What went wrong:

Execution failed for task ':app:processDebugMainManifest'.

> Manifest merger failed : uses-sdk:minSdkVersion 16 cannot be smaller than version 19 declared in library [:google_mobile_ads] C:\flutter\mymemo_admob\build\google_mobile_ads\intermediates\merged_manifest\debug\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 19,

or use tools:overrideLibrary="io.flutter.plugins.googlemobileads" to force usage (may lead to runtime failures)

* Try:

> Run with --stacktrace option to get the stack trace.

> Run with --info or --debug option to get more log output.

> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 4s

┌─ Flutter Fix ─────────────────────────────────────────────────────────────────────────────────┐

│ The plugin google_mobile_ads requires a higher Android SDK version. │

│ Fix this issue by adding the following to the file │

│ C:\flutter\mymemo_admob\android\app\build.gradle: │

│ android { │

│ defaultConfig { │

│ minSdkVersion 19 │

│ } │

│ } │

│ │

│ Note that your app won't be available to users running Android SDKs below 19. │

│ Alternatively, try to find a version of this plugin that supports these lower versions of the │

│ Android SDK. │

│ For more information, see: │

│ https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration │

└───────────────────────────────────────────────────────────────────────────────────────────────┘

Exception: Gradle task assembleDebug failed with exit code 1

이럴땐 어떻게 하는게 좋을까요