Flutter Problems with Google Mobile Ads Plugin

I would like to know, why these errors and how to solve them, when I use flutter run, flutter returns these errors:

Launching lib\main.dart on BISON in debug mode... Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01 Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01 Formato de par�metros incorreto - Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\path_provider_android-2.0.9\android\src\main\java\io\flutter\plugins\pathprovider\PathProviderPlugin.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. e: C:/Users/Arthur Alland/.gradle/caches/transforms-2/files-2.1/ae449724a6ca38888aadaf690b25af94/work-runtime-2.7.0-api.jar!/META-INF/work-runtime_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.5.1, expected version  is 1.1.15. FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:compileDebugKotlin'. > Compilation error. See log for more details * 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 6m 1s Running Gradle task 'assembleDebug'...                            365,1s Exception: Gradle task assembleDebug failed with exit code 1 

Android Build Gradle

buildscript {     ext.kotlin_version = '1.3.50'     repositories {                                  google()                  jcenter()     }     dependencies {         classpath 'com.android.tools.build:gradle:4.1.0'         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"     } } allprojects {     repositories {         google()         jcenter()      } } rootProject.buildDir = '../build' subprojects {     project.buildDir = "${rootProject.buildDir}/${project.name}" } subprojects {     project.evaluationDependsOn(':app') } task clean(type: Delete) {     delete rootProject.buildDir } 

Gradle Wrapper Properties

distributionBase=GRADLE_USER_HOME distributionPath=wrapper/dists zipStoreBase=GRADLE_USER_HOME zipStorePath=wrapper/dists distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip 

Android Manifest

<manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.example.you_plan">     <!-- io.flutter.app.FlutterApplication is an android.app.Application that          calls FlutterMain.startInitialization(this); in its onCreate method.          In most cases you can leave this as-is, but you if you want to provide          additional functionality it is fine to subclass or reimplement          FlutterApplication and put your custom class here. -->     <application         android:name="io.flutter.app.FlutterApplication"         android:label="you_plan"         android:icon="@mipmap/ic_launcher">         <activity                      android:name=".MainActivity"                          android:launchMode="singleTop"             android:theme="@style/LaunchTheme"             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"             android:hardwareAccelerated="true"             android:windowSoftInputMode="adjustResize">             <!-- Specifies an Android theme to apply to this Activity as soon as                  the Android process has started. This theme is visible to the user                  while the Flutter UI initializes. After that, this theme continues                  to determine the Window background behind the Flutter UI. -->                           <meta-data               android:name="io.flutter.embedding.android.NormalTheme"               android:resource="@style/NormalTheme"               />             <!-- Displays an Android View that continues showing the launch screen                  Drawable until Flutter paints its first frame, then this splash                  screen fades out. A splash screen is useful to avoid any visual                  gap between the end of Android's launch screen and the painting of                  Flutter's first frame. -->             <meta-data               android:name="io.flutter.embedding.android.SplashScreenDrawable"               android:resource="@drawable/launch_background"               />                         <intent-filter>                 <action android:name="android.intent.action.MAIN"/>                 <category android:name="android.intent.category.LAUNCHER"/>             </intent-filter>         </activity>         <!-- Don't delete the meta-data below.              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->         <meta-data             android:name="flutterEmbedding"             android:value="2" />               <meta-data     android:name="com.google.android.gms.ads.APPLICATION_ID"     android:value="ca-app-pub-3940256099942544~3347511713"/>     </application> </manifest>

I googled it several times and the problem seems to be with these android files, but I don't have much experience with android