VisualAssert Error (Arguments to path.join must be strings)


I have a real simple test doing on. The webpage has a pie chart in view. I have captured the test image Im looking for. When I execute the script or even click “find” I get this error:

Executing: | visualAssert | MoHItn_dpi_96.png | |
Arguments to path.join must be strings

FWIW the DemoVisualUITest fails with the identical error

kantu - latest
chrome - latest
MacOS Mojave