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Question by EmreBgdy · Jul 14, 2015 at 12:16 PM · c#unity 5databasethreadingparse

get_version can only be called from the main thread.

So I am using parse.com(a backhand database provider, made by facebook) for my unity project. I got stuck with a serious problem. Here is the explanation;

as long as i throw out my Synchronization codes from my game everything works fine but i need it in order to make the player sync their data to the server.

So here is the error im an getting:

 get_version can only be called from the main thread.
 Constructors and field initializers will be executed from the loading thread when loading a scene.
 Don't use this function in the constructor or field initializers, instead move initialization code to the Awake or Start function.


And here is my user.cs code:

 using UnityEngine;
 using System.Collections;
 using System.Threading;
 using Parse;
 
 public class User : MonoBehaviour {
     
     public bool isAuthenticated = false;
     public string userName = null;
     public int level;
     public int exp;
     public int money;
     public GoLobby golobby;
     public Sync sync;
     public bool isGoLobbyEnabled = false;
     
 
     void Awake ()
     {
         DontDestroyOnLoad(this.gameObject);
     }
     
 
     
     void OnGUI ()
     {
         if (isAuthenticated == true) 
         {
             GUI.Box (new Rect (0,0,250,100), userName);
             //GUI.Label (new Rect (0, 15, 400, 100), "Username: " + userName);
             GUI.Label (new Rect (0, 10, 400, 100), "Level: " + level);
             GUI.Label (new Rect (0, 25, 400, 100), "Experience: " + exp);
             GUI.Label (new Rect (0, 40, 400, 100), "Money:" + money);
             if (GUI.Button (new Rect (178, 67, 70, 30), "Sync")) 
             {
                 sync.SyncToServer (userName, level, exp, money);
             }
         }
     }
 
     
     public void LoginUser(string username, string password)
     {
 
         var query = ParseObject.GetQuery("Member")
             .WhereEqualTo("Username", username)
             .WhereEqualTo("Password", password);
         query.FirstOrDefaultAsync().ContinueWith(t =>
                                        {
             ParseObject result = t.Result;
             //print (result);
             string playerName = result.Get<string>("Username");
             string playerPassword = result.Get<string>("Password");
             int playerLevel = result.Get<int>("Level");
             int playerexp = result.Get<int>("Experience");
             int playerMoney = result.Get<int>("Money");
             isAuthenticated = true;
             userName = playerName;
             money = playerMoney;
             exp = playerexp;
             sync.SyncToServer (userName, level, exp, money);
             isGoLobbyEnabled = true;
             GoLobby();
         });
     }
 
 void GoLobby()
     {
         if (isGoLobbyEnabled == true) {
             Application.LoadLevel ("Lobby");
         }
     }
 }
 




here is my sync.cs script:

 using UnityEngine;
 using System.Collections;
 using Parse;
 
 public class Sync : MonoBehaviour {
 
 
     void Awake ()
     {
         DontDestroyOnLoad(this.gameObject);
     }
 
     public void SyncToServer (string username, int level, int exp, int money)
     {
         var query2 = ParseObject.GetQuery ("Member")
             .WhereEqualTo ("Username", username);
         query2.FirstAsync ().ContinueWith (t =>
                                            {
             ParseObject obj = t.Result;
             Debug.Log (obj.ObjectId); //Works fine
             obj["Level"] = level;
             obj["Experience"] = exp;
             obj["Money"] = money;
             obj.SaveAsync();
         });
     }
 }
 




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avatar image EmreBgdy · Jul 13, 2015 at 10:31 PM 0
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Not trying to be rude or something, really love Unity team but is it possible if my question can get approved asap please? As you can see it doesnt includes any illegal or bad content. Just a problem that i am having.

avatar image EmreBgdy · Jul 14, 2015 at 08:46 AM 0
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Dear moderators how long am i supposed to wait for approval? Atleast tell me if i broke any rules or something.

avatar image EmreBgdy · Jul 14, 2015 at 12:27 PM 0
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I posted the whole error here, it doesnt specify any script or a line which makes the whole process harder for me.

But I came up with something really strange. When I delete the sync parts from scripts there are no errors and everything works just fine as expected.

avatar image Dave-Carlile · Jul 14, 2015 at 12:44 PM 0
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Also, the Unity team isn't doing the modding here for the most part. It's just volunteers doing it in their free time. Patience young padawan.

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