项目是老项目，没有适配androidX，使用rocketX插件编译不了

[ouyangpeng]

1. 背景：项目是老项目，没有适配androidX
2. 问题：使用rocketX插件编译不了
3. 编译错误详情

> 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

* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.