报错如下:

Could not determine the dependencies of task ':app:lintVitalRelease'.
> Could not resolve all artifacts for configuration ':app:debugCompileClasspath'.
   > Could not find com.android.support:support-v4:30.0.0.
     Required by:
         project :app

Possible solution:
 - Declare repository providing the artifact, see the documentation at https://docs.gradle.org/current/userguide/declaring_repositories.html

解决办法：

1. # 需要在gradle.properties中添加下面两行代码

2. # 这是因为混合支持库。通过添加这些行选择androidX作为您的支持库

3. android.useAndroidX=true

4. android.enableJetifier=true