jcenter

I solved the problem by moving: maven { url ‘https://dl.google.com/dl/android/maven2’ } in the top of: jcenter() in the file: .flutter/packages/flutter_tools/gradle/flutter.gradle: buildscript { repositories { maven { url ‘https://dl.google.com/dl/android/maven2’ } jcenter() } dependencies { classpath ‘com.android.tools.build:gradle:3.1.2’ } }