This project uses AndroidX dependencies, but the ‘android.useAndroidX‘ property is not enabled

具体错误：

This project uses AndroidX dependencies, but the 'android.useAndroidX' property is not enabled. Set this property to true in the gradle.properties file and retry.
The following AndroidX dependencies are detected: androidx.annotation:annotation:1.0.2
Affected Modules: app

找到gradle.properties，增加：

android.useAndroidX=true
android.enableJetifier=true