Party - load new scene error: only one PartyManager instance may exist at a time

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Abdul Ahmad asked Nov 8, '21

Party - load new scene error: only one PartyManager instance may exist at a time

I have a game (unity) where the players do matchmaking and join a party in the first scene, and then they're all moved into another scene to play the game. I have a playfabMultiplayerManager prefab in both scenes, but when the second scene loads i get these 2 errors:

only one PartyManager instance may exist at a time

and

The Party DLL could not be unloaded. Please restart Unity to unload it.

not sure what the right way to do this is. Do I just have the playfabMultiplayerManager in the first scene? or do I have it only in the second scene?

Matchmaking

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Answer 1 · 2021-11-10T08:25:48Z

Rick Chen answered Nov 10, '21

Currently, the PlayFabMultiplayerManager does not support switching back to the scene that creates the PlayFabMultiplayerManager instance. As a workaround, you can change the Start function in PlayFabMultiplayerManager.cs from

private void Start()
{
_Initialize();
}

to

private void Start()
{
if (_multiplayerManager != null)
{
gameObject.SetActive(false);
Destroy(gameObject);
}
else
{
_multiplayerManager = this;
_Initialize();
}
}

such that you can avoid creating duplicate instance of the PlayFabMultiplayerManager.

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Answer 2 · 2021-11-08T08:23:50Z

Rick Chen answered Nov 8, '21

The Prefab PlayFabMultiplayerManager is a singleton and you don’t need to put it in every scene. You can put it in the first scene and it will not be destroyed when you switch the scene.

1

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Abdul Ahmad commented · Nov 09, 2021 at 04:49 AM

thanks, that makes sense. I removed the manager from my second scene and the error went away. However, when I go back to the first scene (this happens after a game ends because the game goes back to the "Main Menu" scene) I see these errors again. Is there a work-around for this? Should I just ignore the errors if things continue working? (I still have to test if things are working OK after these errors are displayed)

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