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

Solution

Find..\android\app\build.gradle in your Flutter project folder. And add the following lines. defaultConfig { // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html). applicationId "com.example.XXX" minSdkVersion flutter.minSdkVersion targetSdkVersion flutter.targetSdkVersion versionCode flutterVersionCode.toInteger() versionName flutterVersionName multiDexEnabled true } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" implementation 'com.android.support:multidex:2.0.1' //enter the latest multidex version }