Shader wants normals, but the mesh doesn't have them UnityEditor.DockArea:OnGUI()

Questions & Answers
1

I keep having this problem

Shader wants normals, but the mesh  doesn't have them
UnityEditor.DockArea:OnGUI()

It just randomly appeared, please some one give me an idea on what the problem could be.

2

If you google it:

if that do not work than please give some code to explain what is going on.

3

It fixed itself. Something to do with the GUI Layer on the Main Camera, even though I don’t have a GUI, but whatever. Also those Google searches are not related to my problem at all.