[SKAzini]

As Mike said:

pawn Код:

COMMAND:dealmeth(playerid, params[])
{
  if(!IsPlayerInRangeOfPoint(playerid, 30.0,2451.0056,-2118.1301,13.5469))return SendClientMessage(playerid, 0xE0313AFF, "(( You are not at the meth dealing point! ))");
  SendClientMessage(playerid, 0x3524C9FF, "(( You have bought some grams of meth! ))");
  SendClientMessage(playerid, 0x3524C9FF, "(( Deliver the meth to the buyers! ))");
  SetPlayerCheckpoint(playerid, 1277.2992,316.4227,26.05556, 5.0);
  return 1;
}

However, when I copied your command I had 4 errors instead of this warning. When I removed the space it compiled succesfully which leads me to thinking that you have a variable named "dealmeth".