Just Updated android studio from 2.3.3 to 3.0 now I am having the error
Error:Execution failed for task \':app:transformDexArchiveWithExternalLibsDexMergerFo
My issue was fixed by changing the minimal SDK to 16 and target SDK to 25, and adding multidexenabled=true in default.config. Add the follwing to in app/build.gradle:
multidexenabled=true
default.config
app/build.gradle
compile 'com.android.support:appcompat-v7:25.+' compile 'com.android.support:design:25.+'