Fix C# MAUI Google BillingClient Errors after migrating from Android 14 to Android 15 to allow the APP to Rebuild and deploy to Desktop and Android Cellphone.

Job ID: 40005856

Budget: $250 – $750 USD

I have a C# MAUI solution that compiled and deployed flawlessly on Android 14. After updating the target to Android 15 the build now fails with a string of Google BillingClient-related compilation errors. Nothing else in the codebase changed, so I’m confident the issue is isolated to the BillingClient package (I’m actually not sure which version is referenced right now).

Microsoft eliminated the Android errors which included updating the Google Billing Library (what ever that mean), but introduced Six (6) build-time errors all reference the BillingClient class—missing types, unresolved members, or ambiguous references.
Before I migrated from Android 14 to Android 15 I could Rebuild and deploy my App to Android Cellphone and Desktop.
Need someone to eliminate every related compilation error in order to Rebuild App so I can deploy App to Desktop and Android Cellphone.

Note: The App was in another folder before I migrated from Android 14 to Android 15. Not sure if this is a factor.
Note: I only wish to create a Subscription for my App (no in-app purchase) whatever that mean.