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In this article, you will solve your Task :app:transformDexArchiveWithDexMergerForDebug FAILED issue in your application.
If your methods + your dependencies method greater then 64k+ methods then your react native throwing DexMerger error.
Follow some simple steps you absolutely solved this error.

Step 1: Enable MultiDex
- Dir - Project/Android/app/build.gradle
1android {2 defaultConfig {3 ...4 minSdkVersion 155 targetSdkVersion 286 multiDexEnabled true // add this line7 }8 ...9}
Step 2: Add Multidex dependencies
Dir - Project/Android/app/build.gradle
1dependencies {2 ...3 def multidex_version = "2.0.1"4 implementation 'androidx.multidex:multidex:$multidex_version'5}
Step 3: Change Your Extends Application
- Dir - Project/android/app/src/main/java/com/Project/MainApplication
MainApplication extends MultiDexApplication
1public class MainApplication extends MultiDexApplication implements ReactApplication {
Step 4: Run Your Project
1Project> cd android2Project> gradlew clean3Project> cd ..4Project> npx react-native run-android
Thanks for reading…
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