title: Dex error On Android Studio 3.0 Beta4
body: <pre><code>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;
  </code></pre>