Expo Google Auth Errors Explained and Fixed: iOS “Missing Support for URL Scheme” & Android “Developer Error”

Oct 25, 2025 · 3 min read · Introduction If you’ve ever tried setting up Google Authentication in React Native (Expo), you’ve probably run into one of these common errors:  iOS: “Your app is missing support for the following URL schemes: com.googleusercontent.apps...” 🤖 And...