A new warning just appeared 3 hours ago, on the Google Play Console. I hope Billing V6 support for Unity is released soon.
Message from Unity Team: Android Play Billing Library 6.0 - ETA - #24 by Yannick_D
“IAP 4.12.0 will have Google Billing Library 6.2.1
We’re currently finalizing it and it should be out early next week.”
Yes, I get this error too, thanks for this.
For anyone who encountered this error, when the new IAP package gets released by next week, make sure to update your IAP on the package manager.
In package manager do “Add package by name” and type "com.unity.purchasing", it should automatically update your unity IAP and you should have Google Play Billing Library 6 or up.
Curious what the ETA on this is
As for the date of my comment here, please do not update your IAP to 4.12.0 yet as it still buggy and you won’t be able to build your project.
here’s the error we’re getting when building the game.
for those who have updated their IAP package to 4.12.0 revert back to older version like 4.8.0 (R)
However, I can build for Android and iOS with Unity 2022.3.30 and 4.12.0, but have another issue with subscription on iOS: https://discussions.unity.com/t/948897
Thanks for letting us know, devs could narrow down the problem to unity version.