Проблема с генерацией apk

Здравствуйте, при генерации apk Grable выдает следующую ошибку.

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

В консоли Grable выдаёт следующие сообщение

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

Подскажите, пожалуйста, где может быть ошибка и как её исправить.