macOS notarization: altool cannot be found

I wanted to start building a notarization automation script.

However, when I try to use the 'xcrun altool' in Terminal, I get the following error:

xcrun: error: unable to find utility "altool", not a developer tool or in PATH

I'm on macOS 10.14.5, Xcode 10.2.1.

I then especially downloaded and installed Xcode Command Line Tools - still get same error.

Other tools like stapler do work.

I checked this dir and altool is not there: /Library/Developer/CommandLineTools/usr/bin

Any idea what's going on?

Thanks!

You might try xcode-select -r to reset your xcode selection.