Unable to Start Application on this device: an unknow server-side error


info: Katalon 6.1.0


i got an error like attachment file, can anyone help me,
thank in advance!

Hi @taynguyen,
Thank you for the provided details.
Not sure if this is the sole reason for your situation, but Katalon does not support Appium 1.14.1.
Please read documentation and forum before trying to use the tool.

Please let us know if downgrading Appium solves your issue or not.

Thank you,

oh, sorry
i will try,
thank Cornel!