Reply To: BUG (critical): ActionListPlayer deserialization

[bcristianParticipant]

Yes, that – since you said “OnValidate() is not really called during serialization as far as I know”.

Other than that, have you had the time to look at the error?
The following is my current modified version (based on 2.6.2), and it seems to work.

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using UnityEngine; using System.Collections.Generic; using NodeCanvas.Framework; using ParadoxNotion.Serialization;   namespace NodeCanvas{   [AddComponentMenu("NodeCanvas/Action List")]     [ExecuteInEditMode] public class ActionListPlayer : MonoBehaviour, ITaskSystem, ISerializationCallbackReceiver {   [System.NonSerialized] private ActionList _actionList;   [SerializeField] private Blackboard _blackboard; [SerializeField] private List<Object> _objectReferences; [SerializeField] private string _serializedList;   public void OnBeforeSerialize(){ _objectReferences = new List<Object>(); _serializedList = JSONSerializer.Serialize(typeof(ActionList), actionList, false, _objectReferences); }   public void OnAfterDeserialize(){ _actionList = JSONSerializer.Deserialize<ActionList>(_serializedList, _objectReferences); if (_actionList == null) _actionList = (ActionList)Task.Create(typeof(ActionList), this); }           void Awake()         {             if (_actionList != null)                 SendTaskOwnerDefaults();         }           ////////         ////////           public ActionList actionList{ get {return _actionList;} set {_actionList = value; SendTaskOwnerDefaults();} }   public Component agent{ get {return this;} }   public IBlackboard blackboard{ get {return _blackboard;} set { if ( !ReferenceEquals(_blackboard, value) ){ _blackboard = (Blackboard)(object)value; SendTaskOwnerDefaults(); } } }   public float elapsedTime{ get {return actionList.elapsedTime;} }   public Object contextObject{ get {return this;} }   public static ActionListPlayer Create(){ return new GameObject("ActionList").AddComponent<ActionListPlayer>(); }   public void SendTaskOwnerDefaults(){ actionList.SetOwnerSystem(this); foreach(var a in actionList.actions){ a.SetOwnerSystem(this); } }   void ITaskSystem.SendEvent(ParadoxNotion.EventData eventData){ Debug.LogWarning("Sending events to action lists has no effect"); }   [ContextMenu("Play")] public void Play(){ if (!Application.isPlaying) return; Play(this, this.blackboard, null); }   public void Play(System.Action<bool> OnFinish){ Play(this, this.blackboard, OnFinish); }   public void Play(Component agent, IBlackboard blackboard, System.Action<bool> OnFinish){ actionList.ExecuteAction(agent, blackboard, OnFinish); }           public Status ExecuteAction()         {             return actionList.ExecuteAction(this, blackboard);         }           ////////////////////////////////////////         ///////////GUI AND EDITOR STUFF/////////         //////////////////////////////////////// #if UNITY_EDITOR           void Reset(){ var bb = GetComponent<Blackboard>(); _blackboard = bb != null? bb : gameObject.AddComponent<Blackboard>(); _actionList = (ActionList)Task.Create(typeof(ActionList), this); }   #endif } }