Flutter not able to run

Question

ERROR:D8: Cannot fit requested classes in a single dex file (# methods: 96089 > 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$2(DefaultWorkerExecutor.java:205) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.gradle.internal.work.DefaultConditionalExecutionQueue$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$1.run(ManagedExecutorImpl.java:48) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$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: 96089 > 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 25s [!] 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 Exception: Gradle task assembleDebug failed with exit code 1

I am facing problem while running main.dart.

Answer 1

1. Enable multidex.

Open [project_folder]/app/build.gradle and add following lines.

defaultConfig {
    ...

    multiDexEnabled true
}

and

dependencies {
    ...

    implementation 'androidx.multidex:multidex:2.0.1'
}