With base I see
Taking screenshot has failed with error: TypeError: Path must be a string. Received [Boolean: true]
Lastly I am not sure how --screenshot-compare-with-base is meant to work, does it expect there to be a file called image with -base appended to it much like the --screenshot-compare-with-previous renames the current file to be -prev.png? There isn't much documentation for this.
Thanks for the help.
Damo