Flutter报错：flutter Your app isn't using AndroidX

运行flutter项目报错：

Your app isn't using AndroidX.To avoid potential build failures, you can quickly migrate your app by following the steps on https://goo.gl/CP92wY.

安卓运行需要支持AndroidX，解决这个警告的办法是在gradle.properties添加如下代码即可：

android.enableJetifier=true
android.useAndroidX=true