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Android Studio – Warning: Mapping new ns to old ns and emulator stopping abruptly

After upgrading to Arctic Fox , I am getting the following errors, even though the emulator is running but sometimes stopping abruptly.
What is this error ?
How can I get rid of this ?

I am using the following as copied from cmd :

    > C:UsersDebasis>flutter doctor Doctor summary (to see all details,
    > run flutter doctor -v): [√] Flutter (Channel stable, 2.2.3, on
    > Microsoft Windows [Version 10.0.19042.1165], locale en-IN) [√] Android
    > toolchain - develop for Android devices (Android SDK version 31.0.0)
    > [√] Chrome - develop for the web [√] Android Studio [√] Connected
    > device (2 available)

• No issues found!

The Error :

Launching libmain.dart on sdk gphone x86 in debug mode… Running
Gradle task ‘assembleDebug’… 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 √
Built buildappoutputsflutter-apkapp-debug.apk. Installing
buildappoutputsflutter-apkapp.apk… Debug service listening on
ws://127.0.0.1:57467/XzCZTOeqyQs=/ws Syncing files to device sdk
gphone x86…

The Issue

SDK Platforms

SDK Tools

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3

Answers


  1. 0

    I had a similar issue. Two things did the trick for me.

    1. Updated the gradle version in my gradle-wrapper.properties file to the latest available version
    2. Updated the gradle plugin version in my /android/build.gradle file to the latest available version

    gradle-wrapper.properties

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

    /android/build.gradle

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

    Give these a try and see if it works!

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  2. 0

    I got the same problem, but after quick research, I managed to solve the problem.

    step 1: Go to this webpage: Android Gradle plugin

    step 2: Copy the build.gradle plugin to version
    see the image here

    step 3: Go to your flutter app project and open the "build.gradle" file under

    your_project>android

    see the image here

    step 4: In that file edit dependencies.

    classpath ‘com.android.tools.build:gradle:<step 2 copied version>’

    see the image here

    step 5: Now re-run your flutter app. You might see a new error, showing

    A problem occurred evaluating project ‘:app’.
    Failed to apply plugin ‘com.android.internal.version-check’.

    see the image here

    Now follow the instructions given in that error. (highlighted area in the image)

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  3. 0

    I have also the same problem, when I was updated android studio. i research to fix that issue,

    TODO ;

    step 1 : GOTO project Folder

    /android/build.gradle

    to update a latest gradle version in dependencies.

    dependencies {
    classpath 'com.android.tools.build:gradle:7.0.2'
}

    step 2 :

    /android/gradle/wrapper/gradle-wrapper.properties

    here also to update a latest version of gradle

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

    step 3: go to terminal and run flutter clean

    step 4: and run flutter pub get

    step 5: and run your project using flutter run command

    one more think but that issue fix that project only. if u know fix that issue permanently please let me know,

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