Social.LoadAchievements crashes.

I faced a very strange situation during my development.
My app is using unity internal Social module like below.

Code (CSharp):

1. public void Init()
2. {
3.     if (Social.localUser.authenticated)
4.     {
5.         LoadAchievements();
6.     }
7. }
8.  
9. void LoadAchievements()
10. {
11.     Social.LoadAchievements(achievements =>
12.     {
13.         if (achievements == null)
14.         {
15.             return;
16.         }
17.  
18.         if (0 < achievements.Length)
19.         {
20.             for (int i = 0; i < achievements.Length; ++i)
21.             {
22.                 // do something
23.             }
24.         }
25.     });
26. }

Condition:
- Unity 5.6.1(f1, p1):
- IL2CPP
- My app is not on iTunesConnect. So the GameCenter does not know about this app.
(but this was not a problem in the past.)
- Also my app dosen't have achievements.
- This is because BundleIdentifier for Appstore and development are different. ex) com.sdf.rb.dev / com.sdf.rb

There was no problem in the first run. However, when I press the Home button to close the app,
and the second time it launches, it crashes in Social.LoadAchievements.
It seems does not reach the my callback. (anonymous delegate passed by parameter.)
And once this happens, it happens continually.

I attached full crash report log.
plz help me, I spent a lot of time on this problem.

 

Try calling LoadAchievements function with a delay of 1 second. I had a similar crash and solved it that way...

 

Thank you for the answer.

Delays from what? Social.localUser.authenticated? or just Social.LoadAchievements call?
Can you tell me more details?

 

I found more information. Social.LoadAchievements(null); is never crashes.
In addition, I attach two types of crash reports that are probably caused by this issue.

 

What I meant was, just make your load achievements a coroutine and call it with a delay, after authentication.

Something like

Code (CSharp):

1. public void Init()
2. {
3.     if (Social.localUser.authenticated)
4.     {
5.        StartCoroutine("LoadAchievements", 1.0f);
6.     }
7. }
8. IEnumerator LoadAchievements()
9. {
10. ....
11. }

 

Unfortunately, It does not work for me.

 

We're seeing the same crash, though for us it's very intermittent. We're also seeing another (related) crash.

• We're running 5.6.2p2.
• We're seeing it in 2 apps with very different code.
• One of those apps was previously on 5.4 and utilises the Crashlytics crash reporting service - these crashes are new with the 5.6 build.
• Our affected apps are on iTunes Connect & have achievements setup correctly.

I have just filed a bug - if it gets a public IssueTracker link I'll post it here.

 

I think I'm getting the same crash in 5.6.3p1. Anyone got more news on this issue?

Thanks!

 

Same in Unity 5.6.2f1. We had that crash http://crashes.to/s/606c5902c62. Then we refactored code and saw that crash logs:
http://crashes.to/s/edad702ee0d (same as above, but here we see that callback, passed to Social.LoadAchievements is called from cpp code and crashes)
http://crashes.to/s/40ad7dd5f11 (that's MemoryAccessException in the code inside that callback)
http://crashes.to/s/4cc103bf6c6 (that's MemoryAccessException in the same code inside that callback)

I think, that when callback, passed in Social.LoadAchievements is called from cpp code, it have limitations on the code/memory use. Maybe better not to do it an anonymous function (lambda), but pass regular method. And maybe add something like internal [UnityEngine.Scripting.RequiredByNativeCode] attribute (just a guess). And make that callback access as less things as possible (so it wount produce MemoryAccessException). For example:

class A
{
private IAchievement[] achievements;

public void DoSome()
{
Social.LoadAchievements(OnLoadAchievements);
}

public void OnLoadAchievements(IAchievement[] platformAchievements)
{
achievements = platformAchievements;
}
}

 

We're experiencing this as well but i am unable to use the attribute RequiredByNativeCode even with the UnityEngine.Scripting namespace.....any other workarounds to this?

 

*We're on 5.6.4p3