First time developing for android BUILD FAILED with error: Could not find support-v4.aar? any ideas?

I’ve installed the necessary files using nvidia code works.
Unreal engine version is 4.19.2

FAILURE: Build failed with an exception.
LogPlayLevel: * What went wrong:
LogPlayLevel: A problem occurred configuring project ‘:app’.
LogPlayLevel: > Could not find support-v4.aar (
LogPlayLevel: Searched in the following locations:
LogPlayLevel: * Try:
LogPlayLevel: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

I fixed the issue by upgrading the project to 4.20 preview 1.