android DexArchiveMergerException: Unable to merge dex
问题 I have recently updated my android sdk version from 25 to 26. After updating the app , i'm receiving this error: Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'. > com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex This is my gradle file: apply plugin: 'com.android.application' android { compileSdkVersion 26 defaultConfig { applicationId "com.hago.ntr" minSdkVersion 15 targetSdkVersion 26 versionCode 1 versionName "1.0"