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

• 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.appcompat:appcompat:1.1.0, androidx.core:core:1.1.0, androidx.versionedparcelable:versionedparcelable:1.1.0, androidx.fragment:fragment:1.1.0, androidx.lifecycle:lifecycle-common:2.1.0, androidx.appcompat:appcompat-resources:1.1.0, androidx.customview:customview:1.0.0, androidx.lifecycle:lifecycle-livedata:2.0.0, androidx.lifecycle:lifecycle-viewmodel:2.1.0, androidx.interpolator:interpolator:1.0.0, androidx.loader:loader:1.0.0, androidx.lifecycle:lifecycle-livedata-core:2.0.0, androidx.activity:activity:1.0.0, androidx.drawerlayout:drawerlayout:1.0.0, androidx.collection:collection:1.1.0, androidx.viewpager:viewpager:1.0.0, androidx.arch.core:core-runtime:2.0.0, androidx.arch.core:core-common:2.1.0, androidx.cursoradapter:cursoradapter:1.0.0, androidx.vectordrawable:vectordrawable-animated:1.1.0, androidx.lifecycle:lifecycle-runtime:2.1.0, androidx.vectordrawable:vectordrawable:1.1.0, androidx.savedstate:savedstate:1.0.0, androidx.annotation:annotation:1.1.0
Affected Modules: app, libusbcamera

• 解决办法

修改gradle.properties，增加：

android.useAndroidX=true
android.enableJetifier=true

重新编译即可。

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