How to avoid "Warning: Mapping..." in Flutter-CodePudding

My application works fine on Flutter 2.0

But when I upgrade Flutter to version 3.0

shows the warning below :

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/addon2/03 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/repository2/03 to old ns http://schemas.android.com/sdk/android/repo/repository2/01
Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/03 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01
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
Warning: unexpected element (uri:"", local:"base-extension"). Expected elements are <{}codename>,<{}layoutlib>,<{}api-level>
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

The application can build and run.

But I would like to avoid it.

build.gradle file

buildscript {
    ext.kotlin_version = '1.6.10'
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:4.1.0' -- update 4.1.0 to 7.1.1
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

gradle-wrapper.properties file

...
distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip  -- update 6.5 to 7.2

CodePudding user response：

Try deleting and reinstalling the SDK platforms. Delete the folders in ~\Android\Sdk\platforms and download the SDKs you need.

Edit: The above somehow resolved the issue before, but I ran into the same problem again when more external packages were updated. This time, deleting the SDK platforms didn't work. Instead, I updated Gradle in two locations in my project:

android/build.gradle

buildscript {
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:7.2.1' // Update this line
        ...
    }
}

Note: 7.2.1 for the Android Gradle Plugin is the latest stable release present at this time in Google's Maven repository. To check for newer versions, visit https://maven.google.com, or the release notes. Under com.android.tools.build > gradle you will find the versions available for Android.

android/gradle/wrapper/gradle-wrapper.properties

...
distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-all.zip # Update this line

Updating the plugin in these two spots resolved the issue for me this time. Hope this helps.