getting error:Object Referance not set to an instance of an object

Question

hey ! i am calling the WarpClient.GetInstance ().GetAllRooms (); to get the room ids in the zone request listener .the fuction upto there works well but when the call back is received it showsa me this error:

NullReferenceException: Object reference not set to an instance of an object

AssemblyCSharp.Listener.onGetAllRoomsDone (com.shephertz.app42.gaming.multiplayer.client.events.AllRoomsEvent eventObj) (at Assets/Listener.cs:113)

com.shephertz.app42.gaming.multiplayer.client.WarpClient.GetAllRooms ()

appwarp.Start () (at Assets/appwarp.cs:38)

 

my zone request listener code is as follows:-

public void onGetAllRoomsDone (AllRoomsEvent eventObj)

{

Debug.Log ("rooms");

Log ("onGetAllRoomsDone : " + eventObj.getResult());

Debug.Log ("onGetAllRoomsDone : " + eventObj.getResult());

for(int i=0; i< eventObj.getRoomIds().Length; i++)

{

Log("Room ID : " + eventObj.getRoomIds()[i]);

}

}

 

 Please Help!Thanks in advance.

 

Answer 1

Hi,

When there is no rooms available, getRoomIds() retursn null. You need to check if getRoomIds is null or not before using it. This should solve your problem. If the issue still persists please let me know.

Thanks

Comments

You can do something like this
public void onGetAllRoomsDone (AllRoomsEvent eventObj)
{
    Debug.Log ("rooms");
    Debug.Log ("onGetAllRoomsDone : " + eventObj.getResult());
   
    if(eventObj.getRoomIds() != null)
    {
        for(int i=0; i< eventObj.getRoomIds().Length; i++)
        {
            Log("Room ID : " + eventObj.getRoomIds()[i]);
        }
    }
}

---

the error now disappears but i get ongetallroomsdone as 6 in the log .please help!

---

also when i add an else case to check it it runs .which means the result is null.but i have 3 rooms running in the developer console

---

This occurs when you try to call getAllRooms() when you are not connected. Please check connection status. You should call this method once you have got success in onConnectDone

---

Thanks Suyash Worked perfectly.