Error: LoginAuthenticator credentials file not set

I’m trying to follow the below tutorial and at the beginning I’m already facing an error. When I run “smartthings edge:drivers” I get “Error: LoginAuthenticator credentials file not set.”

https://community.smartthings.com/t/tutorial-creating-drivers-for-lan-devices-with-smartthings-
edge/229501

Hi, @DavinD!
Which version of the CLI are you using? (run smartthings or smartthings --version commands)
Also, can you enable the debug mode to see if we can get more details about this issue, please?

If using Linux/Mac OS:

SMARTTHINGS_DEBUG=true smartthings <command>

If using Windows:

//first
set SMARTTHINGS_DEBUG=true
//then
smartthings command