I sculpted something and tried to bake normal map. Then there was error saying ‘no active object blah blah’.
I rummaged community and found that I have to add unconnected image texture to material node.
So I added random image or added its own uv map material as image texture, then cycles could bake normal and other maps.
…I don’t undertand. ‘unconnected image texture’? What does that mean? Internal renderer didn’t need it. Why should I add unconnected image texture? and was I supposed to add its own uv image as texture?