Copy/paste between behavior trees issue

M

maestroymn

New member
When I want to copy a node(s) from one behavior tree to another one, I always encounter following exception. There are few moments where I find myself lucky to be paste it properly, without any errors/exceptions. Exact case scenario is like following:

1) Open a tree, and make sure to place the editor window as tab on unity
2) select several nodes and hit ctrl + C (Copy)
3) Open another tree and hit ctrl + V (Paste)
4) you should be able to see following exception, and your behavior designer window is broken

Unity version: 2022.3.62f2
Platform: Windows 11
BP PRO Version: 2.1.9

Exception is on the next thread message.
Click to expand...
 
Code: 
NullReferenceException: Object reference not set to an instance of an object
Opsive.GraphDesigner.Editor.Controls.WatchedFields.WatchedFieldBase.IsFieldWatched (Opsive.GraphDesigner.Runtime.ILogicNode node, System.Object childObj, System.Int32 index, System.Reflection.FieldInfo field) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Elements.WatchedContent..ctor (Opsive.GraphDesigner.Runtime.ILogicNode node, System.Int32 index, System.Reflection.FieldInfo field, UnityEngine.UIElements.VisualElement content, System.String displayName) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.BehaviorDesigner.Editor.Controls.StackedTaskControl+StackedTaskView+<>c__DisplayClass10_0.<AddTaskValues>b__0 (UnityEngine.UIElements.VisualElement element, System.Reflection.FieldInfo field) (at <836ed7be010349f1bc055dcc1c6d3ece>:0)
Opsive.Shared.Editor.UIElements.FieldInspectorView.AddTypeControl (UnityEngine.Object unityObject, System.Object target, System.Reflection.FieldInfo field, UnityEditor.SerializedProperty serializedProperty, System.Int32 arrayIndex, System.Type type, System.String label, System.String tooltip, Opsive.Shared.Editor.UIElements.Controls.LabelControl+WidthAdjustment widthAdjustment, System.Object value, UnityEngine.UIElements.VisualElement container, System.Boolean searchBaseTypes, System.Action`2[T1,T2] onAddElement, System.Func`2[T,TResult] onChangeEvent, System.Action onResizeEvent, System.Object userData) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.Shared.Editor.UIElements.FieldInspectorView.AddField (Opsive.Shared.Editor.UIElements.FieldInspectorView+InspectorInput input) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.Shared.Editor.UIElements.FieldInspectorView.AddField (UnityEngine.Object unityObject, System.Object target, System.Reflection.FieldInfo field, UnityEditor.SerializedProperty serializedProperty, System.Action`2[T1,T2] onAddElement, System.Action`1[T] onChangeEvent, System.Func`3[T1,T2,TResult] onValidateChange, UnityEngine.UIElements.VisualElement container, System.Boolean searchBaseTypes, System.Action onResizeEvent, Opsive.Shared.Editor.UIElements.Controls.LabelControl+WidthAdjustment widthAdjustment, System.Collections.Generic.HashSet`1[T] ignoredFieldNames, System.Object userData) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.Shared.Editor.UIElements.FieldInspectorView.AddFields (UnityEngine.Object unityObject, System.Object target, Opsive.Shared.Utility.MemberVisibility visibility, UnityEngine.UIElements.VisualElement container, System.Action`2[T1,T2] onAddElement, System.Action`1[T] onChangeEvent, UnityEditor.SerializedProperty serializedProperty, System.Func`3[T1,T2,TResult] onValidateChange, System.Boolean searchBaseTypes, System.Action onResizeEvent, Opsive.Shared.Editor.UIElements.Controls.LabelControl+WidthAdjustment widthAdjustment, System.Collections.Generic.HashSet`1[T] ignoredFieldNames, System.Object userData) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.BehaviorDesigner.Editor.Controls.StackedTaskControl+StackedTaskView.AddTaskValues (System.Int32 index) (at <836ed7be010349f1bc055dcc1c6d3ece>:0)
Opsive.BehaviorDesigner.Editor.Controls.StackedTaskControl+StackedTaskView+<>c__DisplayClass7_1.<.ctor>b__3 (System.Int32 index) (at <836ed7be010349f1bc055dcc1c6d3ece>:0)
Opsive.Shared.Editor.UIElements.ReorderableList.SelectItem (System.Int32 index) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.Shared.Editor.UIElements.ReorderableList.set_SelectedIndex (System.Int32 value) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.BehaviorDesigner.Editor.Controls.StackedTaskControl+StackedTaskView..ctor (UnityEngine.Object unityObject, Opsive.BehaviorDesigner.Runtime.Tasks.StackedTask stackedTask, System.Func`2[T,TResult] onChangeEvent) (at <836ed7be010349f1bc055dcc1c6d3ece>:0)
Opsive.BehaviorDesigner.Editor.Controls.StackedTaskControl.GetControl (Opsive.Shared.Editor.UIElements.Controls.Types.TypeControlBase+TypeControlInput input) (at <836ed7be010349f1bc055dcc1c6d3ece>:0)
Opsive.Shared.Editor.UIElements.Controls.Types.TypeControlBase.GetTypeControl (Opsive.Shared.Editor.UIElements.Controls.Types.TypeControlBase+TypeControlInput input) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.Shared.Editor.UIElements.FieldInspectorView.AddTypeControl (UnityEngine.Object unityObject, System.Object target, System.Reflection.FieldInfo field, UnityEditor.SerializedProperty serializedProperty, System.Int32 arrayIndex, System.Type type, System.String label, System.String tooltip, Opsive.Shared.Editor.UIElements.Controls.LabelControl+WidthAdjustment widthAdjustment, System.Object value, UnityEngine.UIElements.VisualElement container, System.Boolean searchBaseTypes, System.Action`2[T1,T2] onAddElement, System.Func`2[T,TResult] onChangeEvent, System.Action onResizeEvent, System.Object userData) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.Shared.Editor.UIElements.FieldInspectorView.AddFields (UnityEngine.Object unityObject, System.Object target, Opsive.Shared.Utility.MemberVisibility visibility, UnityEngine.UIElements.VisualElement container, System.Action`2[T1,T2] onAddElement, System.Action`1[T] onChangeEvent, UnityEditor.SerializedProperty serializedProperty, System.Func`3[T1,T2,TResult] onValidateChange, System.Boolean searchBaseTypes, System.Action onResizeEvent, Opsive.Shared.Editor.UIElements.Controls.LabelControl+WidthAdjustment widthAdjustment, System.Collections.Generic.HashSet`1[T] ignoredFieldNames, System.Object userData) (at <047cb8113d364fe685f8a9f109983ccd>:0)
Opsive.GraphDesigner.Editor.Elements.ElementInspector.ShowNodeFields (Opsive.GraphDesigner.Editor.Elements.EditorNode node) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Elements.ElementInspector.UpdateInspector (System.Int32 selectionCount, UnityEngine.UIElements.VisualElement inspectedElement) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Views.GraphView.AddToSelection (Opsive.GraphDesigner.Editor.ISelectable selectable, System.Boolean checkForRemoval) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Views.GraphView.AddToSelection (Opsive.GraphDesigner.Editor.ISelectable selectable) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Views.GraphView.AddCopiedNode (Opsive.GraphDesigner.Runtime.ILogicNode node, Opsive.GraphDesigner.Runtime.LogicNodeProperties nodeProperties) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Elements.CopiedGraph.Paste (Opsive.GraphDesigner.Editor.GraphWindow graphWindow) (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Views.GraphView.PasteCallback () (at <d596ac307a944b70adadad0351f1da96>:0)
Opsive.GraphDesigner.Editor.Views.GraphView.OnExecuteCommand (UnityEngine.UIElements.ExecuteCommandEvent evt) (at <d596ac307a944b70adadad0351f1da96>:0)
UnityEngine.UIElements.EventCallbackFunctor`1[TEventType].Invoke (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.PropagationPhase propagationPhase) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.EventCallbackRegistry.InvokeCallbacks (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.PropagationPhase propagationPhase) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtCurrentTargetAndPhase (UnityEngine.UIElements.EventBase evt) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.CallbackEventHandler.UnityEngine.UIElements.IEventHandler.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.EventDispatchUtilities.HandleEventAcrossPropagationPath (UnityEngine.UIElements.EventBase evt) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.EventDispatchUtilities.PropagateEvent (UnityEngine.UIElements.EventBase evt) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.CommandEventDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <886395f7f3c74189a56ab6a83f489872>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <738dfc017b6f49678c748c0a004fcafe>:0)
UnityEditor.EditorApplication:Internal_CallGlobalEventHandler()
 
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