I'm migrating from revenuecat version 4.3.0 to 6.0.0 and getting DEVELOPER_ERROR when trying to subscribe. The retrieval of the offers and the packages associated with my app work correctly, what could be the problem?
When you see "developer_error", there is typically an error with one of the parameters passed in, making your purchase invalid. The Google reference for the error code may be of more help:
Invalid arguments provided to the API. This error can also indicate that the application was not correctly signed or properly set up for In-app Billing in Google Play, or does not have the necessary permissions in its manifest.
This could also be related to testing with a non-license tester user. You can read more here about how to set up a closed track of your app to debug and test: https://docs.revenuecat.com/docs/google-play-store

Indeed, the error occurred because I was performing a test with the app generated from Android Studio with a user without a test license.
Already solved.
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