Flutter运行报Warning: Mapping new ns xx/common/02 to old ns xx/common/01

问题:Flutter 项目运行警告

 Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01
 Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01
 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01
 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01
 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01

解决方法：升级gradle

修改gradle-wrapper.properties：

distributionUrl=https://services.gradle.org/distributions/gradle-7.0.2-all.zip

修改android/build.gradle：

dependencies {
    classpath 'com.android.tools.build:gradle:7.0.4'
}