Hello, this is Song Yo-chang (totuworld).
Through reporting, we have confirmed an issue where the โGenerate private keyโ button is not exposed in the Firebase setup section, preventing setup from proceeding.
I don't know why the button disappeared, but since there is a workaround using Google Cloud, I uploaded a short video that explains how to do this first. If you are currently struggling with the same issue , please refer to Section 0. Preparation: How to respond when a private key is not created in Firebase.