Gminer problems HELP !!

I have an error when placing gminer.
I can place the one without building. But the other i cant.
It shows an error, “No such function: propSpawnEffect(normal) at line 298, char 9”
Please Help me .
sorry for my bad english

It means the server you playing on doesn’t have Prop Core,or you don’t have it if your trying in single player.

I have the same problem and I cannot get it to work and I have the PropCore_code.txt in the right place.