I recieve this message when I try to upload an xml file.

The errors are along the line of:

1.Space id= sp-34-SP-G01UNISEX_BATHROOM has a negative or zero Area.
2.Space id= sp-34-SP-G01UNISEX_BATHROOM has a negative or zero Volume.

The files I am uploading however DO NOT HAVE THESE SPACES!
I have tried various gbXML files exported from Revit and I get these same errors for each despite the fact that these spaces only exist for one of the buildings I tried.

What is going on?