Build Android fail

[YvesCheung]

Launching lib/main.dart on MI 9 SE in debug mode...
[!] Your app isn't using AndroidX.
To avoid potential build failures, you can quickly migrate your app by following the steps on https://goo.gl/CP92wY.
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:processDebugResources'.

Android resource linking failed
/Users/yvescheung/.gradle/caches/transforms-2/files-2.1/8bebf6c82e74cef171815cf060940ce9/res/values/values.xml:89:5-125:25: AAPT: error: resource android:attr/fontVariationSettings not found.

/Users/yvescheung/.gradle/caches/transforms-2/files-2.1/8bebf6c82e74cef171815cf060940ce9/res/values/values.xml:89:5-125:25: AAPT: error: resource android:attr/ttcIndex not found.

error: failed linking references.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1m 12s
Finished with error: Gradle task assembleDebug failed with exit code 1

[YvesCheung]

com.android.support:support-core-utils:28.0.0
+--- com.android.support:support-core-ui:28.0.0
| --- com.android.support:support-fragment:28.0.0
| --- io.flutter:flutter_embedding_debug:1.0.0-e1e6ced81d029258d449bdec2ba3cddca9c2ca0c
| --- debugRuntimeClasspath

My Flutter engine integrates com.android.support v28.
Set android.compileSdkVersion 28 can solve this problem.

[0oooooooo0]

I had the same problem and solved it.

1.Go to android/app/bundle.gradle.
2. The compileSdkVersion of line 18 should be 27, but correct it to 28.
3. Success