Hello, when generating apk Grable gives the following error.

Information:Gradle tasks [:app:assembleRelease] Error:Error converting bytecode to dex: Cause: com.android.dex.DexException: Multiple dex files define Lcom/google/android/gms/internal/zzln; Error:Execution failed for task ':app:transformClassesWithDexForRelease'. > com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: java.lang.UnsupportedOperationException Information:BUILD FAILED

The Grable console displays the following message.

 AGPBI: {"kind":"error","text":"Error converting bytecode to dex:\nCause: com.android.dex.DexException: Multiple dex files define Lcom/google/android/gms/internal/zzln;","sources":[{}],"original":"UNEXPECTED TOP-LEVEL EXCEPTION:\ncom.android.dex.DexException: Multiple dex files define Lcom/google/android/gms/internal/zzln;\n\tat com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:579)\n\tat com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:535)\n\tat com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:517)\n\tat com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:164)\n\tat com.android.dx.merge.DexMerger.merge(DexMerger.java:188)\n\tat com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:504)\n\tat com.android.dx.command.dexer.Main.runMonoDex(Main.java:334)\n\tat com.android.dx.command.dexer.Main.run(Main.java:277)\n\tat com.android.dx.command.dexer.Main.main(Main.java:245)\n\tat com.android.dx.command.Main.main(Main.java:106)\n","tool":"Dex"} :app:transformClassesWithDexForRelease FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:transformClassesWithDexForRelease'. > com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: java.lang.UnsupportedOperationException * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED

Tell me, please, where there can be a mistake and how to fix it.

  • Well, like you all wrote fine. You do not connect ads 2 times by accident? In general, check your dependencies, the class Lcom/google/android/gms/internal/zzln connected twice - pavel

1 answer 1

Thank you all for your help.

The problem was this:

 compile 'com.android.support:appcompat-v7:23.4.0' compile 'com.android.support:design:23.4.0' compile 'com.google.android.gms:play-services-analytics:9.0.0' compile 'com.google.firebase:firebase-core:10.0.1' compile 'com.google.firebase:firebase-ads:10.0.1' testCompile 'junit:junit:4.12'

And it was necessary so:

 compile 'com.android.support:appcompat-v7:23.4.0' compile 'com.android.support:design:23.4.0' compile 'com.google.android.gms:play-services-analytics:10.0.1' compile 'com.google.firebase:firebase-core:10.0.1' compile 'com.google.firebase:firebase-ads:10.0.1' testCompile 'junit:junit:4.12'

As commented IDLE You should use same version com.google.android