I just finished rigging my character from scratch in blender 2.8.75 and imported it into Unity and I get the following message: Can't calculate tangents because mesh "w.head.touch" doesn't contain normals. This error is relating to all 76 of my touch bones in my blender character. I applied the location, rotation, and scale in blender, but I don't know why I'm getting this particular error when I import it into Unity. After I finished with the bones on my Blender character and imported it into Unity, everything worked up until that point. But now that all the bones and rigging and everything is all finished, I get this error. Is there something I need to do with my bone shapes to correct this? Any help would be greatly appreciated.