Help me please. Unable to create a new remote session

Hi Bao,

What Appium Server version you are using? You can check this by running on the command line:

appium -v

This usually the compatible version combinations of Katalon Studio and Appium problem, you could check on that in Troubleshooting Exceptions on Mobile - (Recommended: KS 7.x + Appium 1.15.1).