コンパイルエラーCaused by:com.android.tools.r 8.CompilationFailedException:Compilation failed to complete

> Task :app:mergeDexDebug FAILED AGPBI: {"kind":"error","text":"Cannot fit requested classes in a single dex file (# methods: 96574 > 65536)","sources":[{}],"tool":"D8"} com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: The number of method references in a .dex file cannot exceed 64K. Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html     at com.android.builder.dexing.D8DexArchiveMerger.getExceptionToRethrow(D8DexArchiveMerger.java:131)     at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:118)     at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:102)     at com.android.build.gradle.internal.tasks.DexMergingTaskRunnable.run(DexMergingTask.kt:444)     at com.android.build.gradle.internal.tasks.Workers$ActionFacade.run(Workers.kt:335)     at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:39)     at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.execute(NoIsolationWorkerFactory.java:61)     at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)     at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:41)     at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)     at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)     at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)     at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)     at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)     at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)     at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)     at org.gradle.workers.internal.AbstractWorker.executeWrappedInBuildOperation(AbstractWorker.java:41)     at org.gradle.workers.internal.NoIsolationWorkerFactory$1.execute(NoIsolationWorkerFactory.java:55)     at org.gradle.workers.internal.DefaultWorkerExecutor$1.call(DefaultWorkerExecutor.java:105)     at org.gradle.workers.internal.DefaultWorkerExecutor$1.call(DefaultWorkerExecutor.java:99)     at java.util.concurrent.FutureTask.run(FutureTask.java:266)     at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runExecution(DefaultConditionalExecutionQueue.java:215)     at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runBatch(DefaultConditionalExecutionQueue.java:164)     at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.run(DefaultConditionalExecutionQueue.java:131)     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)     at java.util.concurrent.FutureTask.run(FutureTask.java:266)     at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)     at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)     at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)     at java.lang.Thread.run(Thread.java:748) Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete     at com.android.tools.r8.utils.t.a(:55)     at com.android.tools.r8.D8.run(:11)     at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:116)     ... 30 more Caused by: com.android.tools.r8.utils.AbortException: Error: null, Cannot fit requested classes in a single dex file (# methods: 96574 > 65536)     at com.android.tools.r8.utils.Reporter.a(:21)     at com.android.tools.r8.utils.Reporter.a(:7)     at com.android.tools.r8.dex.VirtualFile.a(:33)     at com.android.tools.r8.dex.VirtualFile$h.a(:5)     at com.android.tools.r8.dex.ApplicationWriter.a(:13)     at com.android.tools.r8.dex.ApplicationWriter.write(:35)     at com.android.tools.r8.D8.d(:44)     at com.android.tools.r8.D8.b(:1)     at com.android.tools.r8.utils.t.a(:23)     ... 32 more
FAILURE: Build failed with an exception.
* What went wrong: Execution failed for task ':app:mergeDexDebug'. > A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade    > com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives:      The number of method references in a .dex file cannot exceed 64K.      Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html
* 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 18s 44 actionable tasks: 11 executed, 33 up-to-date
 
ネットでたくさん見ました.解決策:メインプロジェクトのbuild.gradleにJDK 1.8のサポートを追加する

compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

実際の操作中ですか、それともエラーですか.
Android Studioエラー:
The number of method references in a .dex file cannot exceed 64K. Caused by: com.android.tools.r8.utils.AbortException: Error: Cannot fit requested classes in a single dex file (# methods: 68815 > 65536)
ソリューション

build.gradleファイルandroidのdefaultConfigにmultiDexEnabled true

 defaultConfig {
        applicationId "com.droi.jetpack"
        minSdkVersion 16
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true 

}
    

を追加

build.gradleファイルdependenciesにimplementation 'com.android.support:multidex:1.0.3'

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'

    implementation project(":libnetwork")
    implementation 'com.android.support:multidex:1.0.3'
}

を追加

Applicationクラスに

public class MyApp extends MultiDexApplication {

    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }
}

を追加して完璧に解決します....

を記録してください