I've been working on a Flutter app and it was working on Android and Web. I added support for Firebase and got that working on the web but now the Android build doesn't work. I get the following errors:

e: file:///<project_root>/android/app/src/main/kotlin/productions/moo/tarot_tutor/MainActivity.kt:3:11 Unresolved reference 'flutter'.
e: file:///<project_root>/android/app/src/main/kotlin/productions/moo/tarot_tutor/MainActivity.kt:5:21 Unresolved reference 'FlutterActivity'.

I added the gradle entries that I was told to in the Firebase Console and I updated Gradle from 8.9.0 to 8.9.1 but I wouldn't think that would cause this issue. I've tried going through various iterations of invalidating caches, flutter clean, gradle syncs, etc. but nothing is changing.

I've been working on a Flutter app and it was working on Android and Web. I added support for Firebase and got that working on the web but now the Android build doesn't work. I get the following errors:

e: file:///<project_root>/android/app/src/main/kotlin/productions/moo/tarot_tutor/MainActivity.kt:3:11 Unresolved reference 'flutter'.
e: file:///<project_root>/android/app/src/main/kotlin/productions/moo/tarot_tutor/MainActivity.kt:5:21 Unresolved reference 'FlutterActivity'.

I added the gradle entries that I was told to in the Firebase Console and I updated Gradle from 8.9.0 to 8.9.1 but I wouldn't think that would cause this issue. I've tried going through various iterations of invalidating caches, flutter clean, gradle syncs, etc. but nothing is changing.

• flutter

1 Answer 1

It turns out this was caused by Firebase wanting a newer NDK version than what was in my Flutter SDK defaults.