Dex error On Android Studio 3.0 Beta4

Question

Error:java.lang.RuntimeException: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
Error:java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
Error:com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
Error:com.android.dex.DexException: Multiple dex files define Lcom/google/zxing/integration/android/IntentResult;

Answer 1

I have same problem with Android Studio 3.0 beta 4. I found a solution.

1. From the Build menu, press the Clean Project button.

2. After task completed, press the Rebuild Project button from the Build menu.