Getting error message :- java.lang.ClassCastException: java.util.HashMap cannot be cast to org.openq

Thank you for the good news, @duyluong, this was long awaited by the community.

Later edit:
This functions beautifully on Windows and Android with the tweaks Duyluong mentions in bellow post response (when upgrading appium).

=== Initial message: ===
However, my test does not look promising, and I don’t see what I can do wrong, since I have made several different trials.
My conclusion is that Katalon 6.2.0 and Appium 1.12.1 are still not playing along, or a setting is missing and not shared publicly yet.

Please see details here: An unknown server-side error occurred while processing the command. Original error: The instrumentation process cannot be initialized

Thank you,
Cornel