My eye won't track to my bone armature When I added an object constraint to my eye mesh, I selected my armature as my target and my bone as the one that I want my eye to track to, but it's not working.

Here's what it looks like:

And every time I move my bone, the eye doesn't track to it. There appears to be a red bar right next to the word Track To in the Constraints Panel, maybe there might be an error?
Your problem is that the "up" axis is set to Z and the "to" axis is set to Z. The constraint can't point Z up and track it to the armature at the same time. If you want to track to the Z axis use a different axis as "up".