Bug CS0414 Warning

So i have this error:

And i do not get it why it is throwing it even tho i've used the tileSize field multiple times.

I'm pretty much a beginner folowing a tutorial so i have no clue how i could fix this.

 

Don't. It's not an error. Just read what it says. "Assigned to but not used."

You'll probably see this a lot as you work through tutorials. It is just trying to save you by saying, you created this variable, you gave it an initial value, but you're not using it. If you don't need it, delete it!

But, as that isn't always the case, especially if you're creating variables during a tutorial but haven't written the code to use it, it's nothing to worry about.

 

I can't start my game because all compiler error have to be fixed before i can enter playmode.

 

I think i got it, thanks for the help!

 

Errors are the red ones. These must be fixed.

The yellow ones are warnings. These sometimes should be fixed. Although Unity's inspector system means you will often have a few unresolved CS0414 and CS0649 warnings that aren't meant to be resolved.