I developed an app using python and pyinstaller. I was able to sign it and have it notarized. I verified the app worked when I transferred the zip file to another computer.
Now I'm struggling to create a package installer as outlined in the directions at https://developer.apple.com/forums/thread/128166
At the command prompt I entered the following:
productbuild --sign 'My Name (######7RBW)' --component '/Users/myname/Desktop/dist/my_app.app' /Applications '/Users/myname/Desktop/dist/my_app.pkg'
where ###### is the first six entries of my developer ID.
The error message stated
(Could not find appropriate signing identity for “My Name (######7RBW)”.)
I'm sure this is a common error, but I'm not sure what I did incorrectly above. FWIW, I was able to follow the directions for creating a disk image of my app.