Null fix in dev command.

src/engine/gameManager/BuildingManager.java

@@ -545,7 +545,7 @@ public enum BuildingManager {
 
         NPC npc = null;
 
-        npc = NPC.createNPC(pirateName, NpcID.getObjectUUID(), NpcLoc, null, zone, (short) rank, building);
+        npc = NPC.createNPC(pirateName, NpcID.getObjectUUID(), NpcLoc, building.getGuild(), zone, (short) rank, building);
 
         if (npc == null)
             return false;