I’ve tried building multiple times for API Level 21 (Android 5.0.1) with Solar2D but every time it has failed.
This is part of the console with the error:
Hi, if there are no special requirements, please use the latest version of Solar2D. Currently, it is version 3718. Releases · coronalabs/corona · GitHub
And the current store requires the target API to be 34. Please refer to Target API level requirements for Google Play apps - Play Console Help for more details.