You do not have sufficient permission to save the following content to disk

Hi everyone!

I see this is an old post but since something similar is happening to me and I can’t seem to find a solution I think is a good place to find some help.
I have a project, I import a Datasmith export from Revit, when I do the error comes up telling me I can’t save the RevitMaster material, press OK, Datasmith just imports Materials and Textures but not geometry. Saving the content makes that error come up again and again which is extremely annoying so I have to delete all assets and re-import just to get the error all over again. I don’t really understand what is goin on, any suggestions? Thanks