FAILURE: Build failed with an exception.

[RahimaShapla]

Facing this problem. gradle is not syncing.

• What went wrong:
  A problem occurred configuring project ':background_locator_2'.

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. 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:

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Get more help at https://help.gradle.org.

BUILD FAILED in 737ms
Error: Gradle task assembleDebug failed with exit code 1

[AhmedAlaaGenina]

you found any solution please ?

[LuisOzParr]

same problem

[alpesh031]

You can define common name space for all sub packages via adding below code in project level build.gradle file. Consider adding below code inside subprojects block.

    afterEvaluate { project ->
        if (project.hasProperty('android')) {
            project.android {
                if (namespace == null) {
                    namespace project.group
                }
            }
        }
    }

Final result Example:-

subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
    afterEvaluate { project ->
        if (project.hasProperty('android')) {
            project.android {
                if (namespace == null) {
                    namespace project.group
                }
            }
        }
    }

    //optional
    tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).configureEach {
        kotlinOptions {
            jvmTarget = "1.8"
        }
    }
}

[azabcodes]

you found any solution please ?

any solution @AhmedAlaaGenina