Sorry no joy
Deactivated the folder as suggested and uninstalled all extensions. Booted up Dreamweaver and tried to install Sculptor but got the same error message:
Are we into a reinstall of Dreamweaver? I have had to do this a couple times before to get success with installing the WA extensions.
I am concerned that when I open Extension Manager from applications I get what looks like a Germanic language version. When opened from within Dreamweaver English. This suggests an issue some sort but is it likely to have any impact?