i wanted to look around my map in game to see how it all looked. I compiled, built the mod, and then when i launched it, it stopped loading mid way and came up with that error. Now there are no zombie spawners, or dog spawners (i removed dogs anyways) so it may be that. Now i would like to know what this error means and eliminate it before i go more in depth with this map and get angry just because of this error. I would appreciate help from anyone who could help me sort this out.

Have you compiled your map's patch?

nvm i fixed it, but thx anyways

Please post the solution and mark it as best answer so the topic is marked as "Solved".