Build failure when I add zefyr to my existing code.

[leedstyh]

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 (26.1.0) and runtime (27.1.1) 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 2s
Finished with error: Gradle build failed: 1

Got above error message when I add zefyr to my existing flutter project. But works fine when I only flutter run the example code in zefyr.

I'm new to android dev, so someone help me what might be the problem here.

[leedstyh]

Fixed by following this issue, though not sure why it works.