Android环信集成时出现问题

Android环信集成时添加依赖compile 'com.hyphenate:hyphenate-sdk:3.2.3'后运行异常Error:Execution failed for task ':app:transformClassesWithDexForDebug'. > com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.dex.DexException: Multiple dex files define Lcom/hyphenate/EMCallBack;