Weird ghost-corrupted script thing doesn't go away

I was having some problems with Text Mesh Pro from the asset store and decided I would use the one built-in (which I don’t think it makes a difference anyway). Then I clicked play to test this script (that follows the player) that I made and a couple errors showed up:

I clicked them, and it took me, not surprisingly, to the camera. I clicked on it, and saw this:

If I click ‘edit’ or ‘reset’ it goes away instantly, but when I hit play again it shows me the 2 warnings again and bam, it’s there. Any way to remove this?

I myself have always added any script and removed the component. Annoyingly, this problem only started after Unity 5.