Hi Jack, I do not use woob yet but I think it works like kbanking, ofximporter.
Go to Accounts > Right click on an account > Map account > Choose weboob. > then you should have an error message because woob is not installed on your computer
I have a similar error on my computer (opensuse tumbleweed). I think that the woob plugin is correctly installed but woob is not installed (not available on opensuse, it should be a dependency of the woob plugin).
Antoine