Launching lib\main.dart on Android SDK built for x86 in debug mode...
FAILURE: Build failed with an exception.

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

Android dependency 'com.android.support:support-v4' has different version for the compile (27.1.1) and runtime (28.0.0) classpath. You should manually set the same version via DependencyResolution

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
• Get more help at https://help.gradle.org
  BUILD FAILED in 5s

The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app.
See https://goo.gl/CP92wY for more information on the problem and how to fix it.

Gradle task assembleDebug failed with exit code 1
Exited (sigterm)