"Output frames overflow the designated sprite sheet size" all the time

So I'm trying to make a sprite sheet of some animations i'm making for a mod for a game, but when i go to make the sprite sheet, it puts a little error thing next to image dimensions and says "Output frames overflow the designated sprite sheet size" 
I've tried every image dimensions size (including auto) and none of them are working. The sprite im making is around the same size as another sprite from the game, and I tried exporting that, and that one works fine. This has been happening for a while now what I try to make a sprite-