Navmesh not baking

Questions & Answers
1

I’m using the latest version of Untiy’s Free edition (4.2f I think) and I can’t seem to get a navmesh to bake correctly. I have a scene composed of a cube, a plane, and a directional light. I have set the plane to static, then went over to the navigation window and tried to bake the navmesh. No blue mesh appears. If I add a navigation agent to the cube, I get an error that says “Navmesh agent failed, no valid navmesh found.” I don’t see what I can be doing wrong.

tl;dr Navmeshes are being a giant headache that I cannot figure out.

3

It will silently fail to bake if the meshes involved have their renderer disabled. It’s so stupid that it uses renderers instead of colliders to calculate the nav mesh.

2

make sure you are using mesh colliders.

4

For anyone who has same problem,

Using unity 2017.2

I faced this issue when I was trying to create an invisible navigation plane.

Unity requires a MeshFilter and Mesh Renderer on the object to bake. You can remove them after backing.