How to solve this: Shader wants normals, but the mesh SpriteManager doesn't have them

Unity Engine
1

I’m a starter in SpriteManager… So after setting up the SpriteManger correctly, I got this error:

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

I’m using the Transparent/DIffuse shader… and literally most of the shaders in the Transparent column.

2

You can’t use shaders that want normals (as the error says). Use an unlit shader.

–Eric

3

I’m getting the same kind of error and am using unlit shaders. It isn’t happening when I play the game, only when I select a model in the Project view. I assume I can ignore these errors? EDIT: The model disappears from the Preview pane in the Inspector when I turn off the Normals.

I turned off the Normals generation in the models as a test. I didn’t notice much difference. Should I have done? My thinking was the fewer things present, the less processing required. But I wondered if this generates more work elsewhere? Or if the shader doesn’t use the normals, then it makes no difference?

4

From my experience, this can also happen when you have deleted a material used by a game object like a text mesh which is still pointing to a deleted font material. I had exactly the same issue until I discovered that I had such a game object.