Contact person: StockPicker

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Location: Guwahati, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"My Android Studio project is already wired to Firebase; database reads and writes work as expected. The stumbling block is the authentication flow. I rely on Firebase Phone Number authentication, yet when I test Google Sign-In an error pops up on the app right after the credentials screen.

I want you to connect through TeamViewer, inspect only the Authentication-related activity/fragment, identify the misconfiguration or code mistake, and apply the fix while we’re on the call. Once the phone-number flow and Google sign-in complete without an in-app error, I’ll consider the task done and we can discuss further features I have in mind.

Deliverable: corrected, tested authentication code committed in my IDE during the session, along with a brief note of what was changed so I can learn from it.

If you have solid Firebase experience, this should be a quick win for both of us." (client-provided description)