Error: Program type already present: android.support.v4.accessibilityservice.AccessibilityServiceInfoCompat

Question

After upgrading to Android Studio 3.1, I started to get following error during build. Project uses multidex and DX is enabled by default as you would notice in the error. I

Answer 1

some third-party library may be use different version of support library. you can use ./gradlew :app:dependencies find out it, and then import the current version of the support library.