Im making a small spaceship prefab and when I compiled it this poped up

Wrong forum.

and what do you mean by "this popped up", the text message at the top of the screen?

You don't need to zip a jpg to attach it to the forum, zipping jpegs don't really save space anyways.

Sorry, I dunno how to do attachments for this forum, and dl the image and look at it, youl see a big block in the way taking up half of the room of the ship. it isnt suppose to be there but it is when I compile it

I fixed it, turns out it was a brush that was messed up

this the ship you got the idea from mine?

No, this was from an Episode of "The universe" its a ship that was in it