When I open Behavior Tree editor inspector,there are many error:
TypeLoadException: Could not resolve type with token 01000084 from typeref (expected class 'UnityEngine.EventModifiers' in assembly 'UnityEngine.IMGUIModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null')
BehaviorDesigner.Editor.BehaviorDesignerWindow.OnGUI () (at <59f8ef880fbf4a509e662ce8f5992b3d>:0)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition) (at <0e78d59907e9464abb64cd241282731e>:0)
UnityEditor.DockArea.DrawView (UnityEngine.Rect dockAreaRect) (at <0e78d59907e9464abb64cd241282731e>:0)
UnityEditor.DockArea.OldOnGUI () (at <0e78d59907e9464abb64cd241282731e>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.IMGUIContainer.DoIMGUIRepaint () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIR.RenderChainCommand.ExecuteNonDrawMesh (UnityEngine.UIElements.UIR.DrawParams drawParams, System.Single pixelsPerPoint, System.Exception& immediateException) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
Rethrow as ImmediateModeException
UnityEngine.UIElements.UIR.RenderTreeManager.RenderSingleTree (UnityEngine.UIElements.UIR.RenderTree renderTree, UnityEngine.RenderTexture nestedTreeRT, UnityEngine.RectInt nestedTreeViewport, UnityEngine.Rect bounds) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIR.RenderTreeManager.RenderRootTree () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIRRepaintUpdater.Render () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.BaseVisualElementPanel.Render () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.Panel.Render () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <b589a158f82a4d0383d140f349b608e5>:0)




TypeLoadException: Could not resolve type with token 01000084 from typeref (expected class 'UnityEngine.EventModifiers' in assembly 'UnityEngine.IMGUIModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null')
BehaviorDesigner.Editor.BehaviorDesignerWindow.OnGUI () (at <59f8ef880fbf4a509e662ce8f5992b3d>:0)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition) (at <0e78d59907e9464abb64cd241282731e>:0)
UnityEditor.DockArea.DrawView (UnityEngine.Rect dockAreaRect) (at <0e78d59907e9464abb64cd241282731e>:0)
UnityEditor.DockArea.OldOnGUI () (at <0e78d59907e9464abb64cd241282731e>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.IMGUIContainer.DoIMGUIRepaint () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIR.RenderChainCommand.ExecuteNonDrawMesh (UnityEngine.UIElements.UIR.DrawParams drawParams, System.Single pixelsPerPoint, System.Exception& immediateException) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
Rethrow as ImmediateModeException
UnityEngine.UIElements.UIR.RenderTreeManager.RenderSingleTree (UnityEngine.UIElements.UIR.RenderTree renderTree, UnityEngine.RenderTexture nestedTreeRT, UnityEngine.RectInt nestedTreeViewport, UnityEngine.Rect bounds) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIR.RenderTreeManager.RenderRootTree () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIRRepaintUpdater.Render () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.BaseVisualElementPanel.Render () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.Panel.Render () (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <0bcb90c459a2413a94634a44aeb1d754>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <b589a158f82a4d0383d140f349b608e5>:0)



