Err:Unable to start application on this device.:Appium directory is invalid : cannot find apium exe

Screen Shot 2018-05-19 at 7.04.20 PM.png

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PC : MAC BOOK AIR
All paths are set still showing this error.

Anyone know how to resolve this issue for mobile appliciation testing real device.

Please show me your Appium path in Katalon Studio -> Preferences -> Mobile. Make sure the directory is something like this:
/usr/local/lib/node_modules/appium