Katalon Studio shows an error when starting the Mobile Recorder with having set the Appium directory to /Applications/Appium.app or /Applications/Appium.app/Contents/MacOS.
Unable to start application on this device: : Appium directory is invalid: Cannot find Appium executable file.
How do you fix this on a Mac?
You need to install Appium from the command line instead of downloading the Mac app.
npm install -g appium
After that, set the Appium Directory in Katalon Studio to
/usr/local/lib/node_modules/appium