Failed to Build App Gradle - Missing Package Namespace

[mohamad97-alhomsi]

I'm using the latest version of Flutter 3.22.2 for now Gradle version: 8.7 AGP version: 8.5.0

when I was trying to build a release version of my app I got this error :

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.

• What went wrong: A problem occurred configuring project ':pusher_channels_flutter'.

Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl. Namespace not specified. Specify a namespace in the module's build file: /Users/dreamoperations/.pub-cache/hosted/pub.dev/pusher_channels_flutter-2.2.1/android/build.gradle. See https://d.android.com/r/tools/upgrade-assistant/set-namespace for information about setting the namespace.

 If you've specified the package attribute in the source AndroidManifest.xml, you can use the AGP Upgrade Assistant to migrate to the namespace value in the build file. Refer to https://d.android.com/r/tools/upgrade-assistant/agp-upgrade-assistant for general information about using the AGP Upgrade Assistant.

• Try:

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. Get more help at https://help.gradle.org. ==============================================================================

2: Task failed with an exception.

• What went wrong: Failed to query the value of property 'buildFlowServiceProperty'.

Could not isolate value org.jetbrains.kotlin.gradle.plugin.statistics.BuildFlowService$Parameters_Decorated@28981e77 of type BuildFlowService.Parameters A problem occurred configuring project ':pusher_channels_flutter'. > Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl. > Namespace not specified. Specify a namespace in the module's build file: /Users/dreamoperations/.pub-cache/hosted/pub.dev/pusher_channels_flutter-2.2.1/android/build.gradle. See https://d.android.com/r/tools/upgrade-assistant/set-namespace for information about setting the namespace.

       If you've specified the package attribute in the source AndroidManifest.xml, you can use the AGP Upgrade Assistant to migrate to the namespace value in the build file. Refer to https://d.android.com/r/tools/upgrade-assistant/agp-upgrade-assistant for general information about using the AGP Upgrade Assistant.

• Try:

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. Get more help at https://help.gradle.org. ==============================================================================

BUILD FAILED in 1s Running Gradle task 'assembleRelease'... 2,575ms Gradle task assembleRelease failed with exit code 1