sourceName and sourceLineageTag should be mutually exclusive.

Since this is the only result coming up in any searches, I'll add to this topic, just in case anyone else encounters this same problem.

I too received the same error when trying to remove tables from a mixed storage mode model, which connects to several semantic models in the service. I had automatically add new tables disabled, but they ended up in my report all the same. When trying to remove them (and others), I got this error.

My first thought was dependencies in measures on one or more of the tables I wanted to to remove, but checking with INFO.VIEW.MEASURES() as a calculated table didn't give me any dependencies.

In the end I removed them with Tabular Editor 2, which worked just fine and which was indeed able to save to the model.

Cheers