Hi,
I tried to create an association in my model via XML. The model worked fine without the association but as soon as I added it and tried to import my XML I get an error (The existing model doesn't exist anymore) :

Association:
The VPIM:HVDisk is a type which exists and has properties in it.

Is it possible that I forgot something? Do I need to activate anything?
My community edition is 5.2.
Looking forward to your answers.
Regards