That's one of the tutorials I tried - Jonathan doesn't seem to have a texture attached to a material in that - he just creates the image file in the uv-editor and bakes. I think I am doing the same thing, but I get an error.

Poser 11 Pro, Windows 10

Auxiliary Apps: Blender 2.79, Vue Complete 2016, Genetica 4 Pro, Gliftex 11 Pro, CorelDraw Suite X6, Comic Life 2, Project Dogwaffle Howler 8, Stitch Witch