[Flutter] Cannot fit requested classes in a single dex file 에러 해결법

에러

Launching lib\main.dart on sdk gphone64 x86 64 in debug mode...
ERROR:D8: Cannot fit requested classes in a single dex file (# methods: 78979 > 65536)
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:151)
	at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:138)
	at com.android.build.gradle.internal.tasks.DexMergingWorkAction.merge(DexMergingTask.kt:859)
	at com.android.build.gradle.internal.tasks.DexMergingWorkAction.run(DexMergingTask.kt:805)
	at com.android.build.gradle.internal.profile.ProfileAwareWorkAction.execute(ProfileAwareWorkAction.kt:74)
	at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:63)
	at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.create(NoIsolationWorkerFactory.java:66)
	at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.create(NoIsolationWorkerFactory.java:62)
	at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:100)
	at org.gradle.workers.internal.NoIsolationWorkerFactory$1.lambda$execute$0(NoIsolationWorkerFactory.java:62)
	at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)
	at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:41)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)
	at org.gradle.workers.internal.AbstractWorker.executeWrappedInBuildOperation(AbstractWorker.java:41)
	at org.gradle.workers.internal.NoIsolationWorkerFactory$1.execute(NoIsolationWorkerFactory.java:59)
	at org.gradle.workers.internal.DefaultWorkerExecutor.lambda$submitWork$2(DefaultWorkerExecutor.java:212)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runExecution(DefaultConditionalExecutionQueue.java:187)
	at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.access$700(DefaultConditionalExecutionQueue.java:120)
	at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner$1.run(DefaultConditionalExecutionQueue.java:162)
	at org.gradle.internal.Factories$1.create(Factories.java:31)
	at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:249)
	at org.gradle.internal.work.DefaultWorkerLeaseService.runAsWorkerThread(DefaultWorkerLeaseService.java:109)
	at org.gradle.internal.work.DefaultWorkerLeaseService.runAsWorkerThread(DefaultWorkerLeaseService.java:114)
	at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runBatch(DefaultConditionalExecutionQueue.java:157)
	at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.run(DefaultConditionalExecutionQueue.java:126)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:49)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, position: null
	at Version.fakeStackEntry(Version_3.3.70.java:0)
	at com.android.tools.r8.internal.Fj.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:75)
	at com.android.tools.r8.internal.Fj.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:28)
	at com.android.tools.r8.internal.Fj.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:27)
	at com.android.tools.r8.internal.Fj.b(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:2)
	at com.android.tools.r8.D8.run(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:11)
	at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:136)
	... 38 more
Caused by: com.android.tools.r8.internal.f: Cannot fit requested classes in a single dex file (# methods: 78979 > 65536)
	at com.android.tools.r8.internal.JT.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:14)
	at com.android.tools.r8.internal.JT.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:22)
	at com.android.tools.r8.internal.n30.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:524)
	at com.android.tools.r8.internal.i30.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:7)
	at com.android.tools.r8.internal.F2.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:371)
	at com.android.tools.r8.internal.F2.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:455)
	at com.android.tools.r8.D8.d(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:756)
	at com.android.tools.r8.D8.b(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:1)
	at com.android.tools.r8.internal.Fj.a(R8_3.3.70_49b71801b8b3de79ea68cec3bf950786c8f90f7a560cea4a2d23a82079b17d04:24)
	... 41 more

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:mergeExtDexDebug'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.DexMergingTaskDelegate
   > There was a failure while executing work items
      > A failure occurred while executing com.android.build.gradle.internal.tasks.DexMergingWorkAction
         > 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 4s
[!] App requires Multidex support
    Multidex support is required for your android app to build since the number of methods has exceeded 64k. See https://docs.flutter.dev/deployment/android#enabling-multidex-support for more information. You may pass the --no-multidex flag to skip Flutter's multidex support to use a manual solution.

    Flutter tool can add multidex support. The following file will be added by flutter:

        android/app/src/main/java/io/flutter/app/FlutterMultiDexApplication.java

cannot prompt without a terminal ui
Error: Gradle task assembleDebug failed with exit code 1


Exited (1).

 

해결 방법

1. android\app\build.gradle 파일을 다음과 같이 수정한다

android {
    defaultConfig {
        ...
        minSdkVersion 15
        targetSdkVersion 28

        multiDexEnabled true // 추가 시킬 부분
    }
    ...
}

dependencies {
  implementation "androidx.multidex:multidex:2.0.1"
}

 

2. 다시 빌드 후 실행한다.

참고

https://developer.android.com/studio/build/multidex

메서드가 64K개를 초과하는 앱에 관해 멀티덱스 사용 설정  |  Android Studio  |  Android Developers

https://m.blog.naver.com/xyz37/222267177324

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