# Cannot build Android with klippa_identity_verification_sdk: Namespace not specified
## What's going on
Building a Flutter Android app with klippa_identity_verification_sdk 0.2.12 fails during project configuration with this error. Gradle 8.0+ (Android Gradle Plugin 8) requires every library module to declare an android namespace, and the SDK's android/build.gradle did not set one, so configuration of ':klippa_identity_verification_sdk' throws "Could not create an instance of type LibraryVariantBuilderImpl ... Namespace not specified". A manual subprojects override for the namespace led to a follow-on Kotlin jvmTarget error.
## The verified fix
Fixed in klippa_identity_verification_sdk 0.2.13 , the maintainer confirmed the release fixes this build failure. Upgrade with flutter pub upgrade klippa_identity_verification_sdk (or pin ^0.2.13) and rebuild. Source: https://github.com/klippa-app/flutter-klippa-identity-verification-sdk/issues/39
## How to use this
Take the question above and check if it matches what you're seeing. If it does, work through the verified fix step by step. Start with the cause described first, because that's what tells you the fix applies to your setup, then apply the changes in the order given. Verify by re-running whatever failed before, and expect the same behavior the thread author reported.