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Question by Louiebloo · Mar 01 at 02:36 AM · networkingserializationmultiplayer-networking

How to NetworkSerialize an Array? Always getting non-nullable Error

I cant create nested custom structs to serialize in NetworkVariables without getting a "the type xx must be a non-nullable value type". Here is a very simple example with a Parent struct and Child struct both inheriting INetworkSerializable. The line NetworkVariable<Parent> test = new NetworkVariable<Parent>(); throws the error.

  public struct Child : INetworkSerializable
     {
         public int turnsActive;
 
         public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
         {
             throw new System.NotImplementedException();
         }
     }
     public struct Parent : INetworkSerializable
     {
         public int whatever;
         public Child[] allAffects;
 
         public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
         {
             throw new System.NotImplementedException();
         }
     }
 
     NetworkVariable<Parent> test = new NetworkVariable<Parent>();

I see another thread with the seemingly the same issue:


https://forum.unity.com/threads/recursive-nested-serialization-does-not-work-with-networkvariables-non-nullable-error.1227552/


Is this going to be fixed? Its currently extremly difficult to use the multiplayer framework without being able to sync very basic data.

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