I uploaded my xml file and corrected all of the errors except:
“thingid is > 15 characters - is this really necessary - it should just be the model number.”
I had initially set the name to “GE 14296 Wall Dimmer” so changed it to “ZW3011/14296” but still get the same error message.
I found this thread which appears to be the same issue and Chris fixed it from his end.
@chris Would you be so good as to take a look and point me in the right direction.
Thanks all for you assistance.