Help With Exception in Protocol - Exception: Read failed. Custom type not found: X

KevTheUnityDev

I have registered a custom type and provided the de/serialization methods, etc. In my case I'm using 'S' (ie byte value 83) for my custom type. And upon reading incoming events I get the following:

Exception: Read failed. Custom type not found: 83
ExitGames.Client.Photon.Protocol18.ReadCustomType (ExitGames.Client.Photon.StreamBuffer stream, Byte gpType) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:247)
ExitGames.Client.Photon.Protocol18.Read (ExitGames.Client.Photon.StreamBuffer stream, Byte gpType) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:20)
ExitGames.Client.Photon.Protocol18.Read (ExitGames.Client.Photon.StreamBuffer stream) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:13)
ExitGames.Client.Photon.Protocol18.ReadHashtable (ExitGames.Client.Photon.StreamBuffer stream) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:307)
ExitGames.Client.Photon.Protocol18.Read (ExitGames.Client.Photon.StreamBuffer stream, Byte gpType) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:82)
ExitGames.Client.Photon.Protocol18.Read (ExitGames.Client.Photon.StreamBuffer stream) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:13)
ExitGames.Client.Photon.Protocol18.ReadHashtable (ExitGames.Client.Photon.StreamBuffer stream) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:307)
ExitGames.Client.Photon.Protocol18.Read (ExitGames.Client.Photon.StreamBuffer stream, Byte gpType) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:82)
ExitGames.Client.Photon.Protocol18.ReadParameterTable (ExitGames.Client.Photon.StreamBuffer stream) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:289)
ExitGames.Client.Photon.Protocol18.DeserializeOperationResponse (ExitGames.Client.Photon.StreamBuffer stream) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/Protocol18Read.cs:339)
ExitGames.Client.Photon.PeerBase.DeserializeMessageAndCallback (ExitGames.Client.Photon.StreamBuffer stream) (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/PeerBase.cs:609)
ExitGames.Client.Photon.EnetPeer.DispatchIncomingCommands () (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/EnetPeer.cs:550)
ExitGames.Client.Photon.PhotonPeer.DispatchIncomingCommands () (at C:/Dev/photon-sdk-dotnet/PhotonDotnet/PhotonPeer.cs:1422)
Photon.Pun.PhotonHandler.FixedUpdate () (at Assets/Photon/PhotonUnityNetworking/Code/PhotonHandler.cs:130)

I have several other custom types, both classes and structs, but they do not have a problem. This particular type is my own container type SyncListInt. There is another mention of this exception in https://forum.photonengine.com/discussion/12634/pun-equivalent-for-unet-synclist . I thought this problem had gone away before, but it recently started happening again.

I could really use some help understanding what this is as it's all in the compiled protocol.

KevTheUnityDev

bump.
Please - can anyone shed some light on this for me? I get this exception every time a remote client attempts to sync the data type I've registered as 83 ((byte)'S').

jeanfabre

Hi,

how do you use your data, meaning, what is your protocole for sending and receiving this data inside PUN? are you using a photonView, an RPC, or else?

Bye,

Jean

KevTheUnityDev

I have all of my "custom" player data added to the Photon.Realtime.Player class by way of changing the class to a partial class definition. Properties get modified by my game logic, and every 0.5 seconds I call SetPropertValues.

Here is how I send the changed values:

private void SetPropertyValue(string propertyName, object value)
{
    if (!this.IsLocal || this.RoomReference == null || !this._setEnabled) return;

    lock (lockObj)
    {
        _changedExtendedProperties[propertyName] = value;
    }
}
private void SetPropertyValues()
{
    lock (lockObj)
    {
        if (_changedExtendedProperties.Count == 0) return;

        if (this.RoomReference.IsOffline)
        {
            // invoking callbacks
            this.RoomReference.LoadBalancingClient.InRoomCallbackTargets.OnPlayerPropertiesUpdate(this, _changedExtendedProperties);
        }
        else
        {
            // send (sync) these new values if in online room
            this.RoomReference.LoadBalancingClient.LoadBalancingPeer.OpSetPropertiesOfActor(this.actorNumber, _changedExtendedProperties);
        }

        _changedExtendedProperties.Clear();
    }
} 

Here is an example of how I use it for an int:

public delegate void AvatarIndexValueChangedHandler(int value);
public event AvatarIndexValueChangedHandler OnAvatarIndexValueChanged;

public const string AVATAR_INDEX_PROP_NAME = "P0";
private int avatarIndex = 0;

public int AvatarIndex
{
    get
    {
        return this.avatarIndex;
    }
    set
    {
        if (this.avatarIndex == value) return;
        this.avatarIndex = value;
        this.SetPropertyValue(AVATAR_INDEX_PROP_NAME, value);
        if (OnAvatarIndexValueChanged != null) OnAvatarIndexValueChanged(this.avatarIndex);
    }
}

jeanfabre

Hi,

ok, you should switch to using a photonView, observing a monobehaviour, and sync your data using OnPhotonSerializeView() callback.

https://doc.photonengine.com/en-us/pun/v2/getting-started/pun-intro

check under GameLogic section on how to implement OnPhotonSerializeView


Bye,

Jean

KevTheUnityDev

To receive changes from remote, I have a MonoBehaviourPunCallbacks object which results in the following method being called:

private void HandlePlayerPropertiesUpdated(Photon.Realtime.Player targetPlayer, Hashtable changedProps)
{
    // prevent infinite set looping
    targetPlayer._setEnabled = false;

    if (changedProps.ContainsKey(AVATAR_INDEX_PROP_NAME))  targetPlayer.AvatarIndex = Convert.ToInt32(changedProps[AVATAR_INDEX_PROP_NAME]);
    //...

    targetPlayer._setEnabled = true;
}