Tilemap mesh needs normals for unity 5.6

[JackMariani]

I've just updated unity version to 5.6 and I keep receiving the following message from the console.

"Mesh doesn't have normals. Please create some for GI."

I'm using a tile map and if I delete it from the scene the message stops.

Still this message keeps repeating indefinitely without any stop so I can't use the console properly.

I would ask you to give it a look.

Thank you very much!

PS: it is probably unrelated but my tilemap keeps creating empty gameobject called "Prefabs" when I load the scene.

[unikronsoftware]

Hi there,

Trying to figure out why this is, I cant reproduce it - are you using dynamic lighting or a lit shader on the tilemap? If so, make sure generate normals is ticked in the sprite collection and rebuild (edit & commit), that will generate the normals its complaining about.

If you're not using lighting, the other thing you could do is disable lighting in the unity lighting window.

[JackMariani]

Thanks! Disabling global illumination worked just fine.