Launching lib\main.dart on sdk gphone16k x86 64 in debug mode... Running Gradle task 'assembleDebug'... FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring project ':image_gallery_saver'.

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. 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. * Try:

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BUILD FAILED in 2s Error: Gradle task assembleDebug failed with exit code 1. I'm boring with this error doing flutter wallpaper app for 4 days , but I can't fix. How I can fix

Do what it tells you? It tells you you did not have the namespace set and you should set it, so set it.