MissingMethodException: Cannot create an abstract class 'BehaviorDesigner.Runtime.SharedVariable'.

favoyang

New member
Task: Has Received Event

Steps
- Create a shared float value, say targetValue
- Add "Has Received Event" Task
- Set "Stored Value 1" to targetValue
- Raise exception MissingMethodException

C#:
MissingMethodException: Cannot create an abstract class 'BehaviorDesigner.Runtime.SharedVariable'.
System.RuntimeType.CreateInstanceMono (System.Boolean nonPublic) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.RuntimeType.CreateInstanceSlow (System.Boolean publicOnly, System.Boolean skipCheckThis, System.Boolean fillCache, System.Threading.StackCrawlMark& stackMark) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.RuntimeType.CreateInstanceDefaultCtor (System.Boolean publicOnly, System.Boolean skipCheckThis, System.Boolean fillCache, System.Threading.StackCrawlMark& stackMark) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Activator.CreateInstance (System.Type type, System.Boolean nonPublic) (at <437ba245d8404784b9fbab9b439ac908>:0)
BehaviorDesigner.Editor.FieldInspector.DrawSharedVariable (BehaviorDesigner.Runtime.Tasks.Task task, UnityEngine.GUIContent guiContent, System.Reflection.FieldInfo fieldInfo, System.Type fieldType, BehaviorDesigner.Runtime.SharedVariable sharedVariable) (at <d917a79751444cb5b4a389f044c18334>:0)
BehaviorDesigner.Editor.TaskInspector.DrawSharedVariableValue (BehaviorDesigner.Runtime.BehaviorSource behaviorSource, System.Reflection.FieldInfo field, UnityEngine.GUIContent guiContent, BehaviorDesigner.Runtime.Tasks.Task task, BehaviorDesigner.Runtime.SharedVariable sharedVariable, System.Boolean isReflectionTask, System.Boolean enabled, System.Boolean drawWatch) (at <d917a79751444cb5b4a389f044c18334>:0)
BehaviorDesigner.Editor.TaskInspector.DrawObjectFields (BehaviorDesigner.Runtime.BehaviorSource behaviorSource, BehaviorDesigner.Editor.TaskList taskList, BehaviorDesigner.Runtime.Tasks.Task task, System.Object obj, System.Boolean enabled, System.Boolean drawWatch) (at <d917a79751444cb5b4a389f044c18334>:0)
BehaviorDesigner.Editor.TaskInspector.DrawTaskFields (BehaviorDesigner.Runtime.BehaviorSource behaviorSource, BehaviorDesigner.Editor.TaskList taskList, BehaviorDesigner.Runtime.Tasks.Task task, System.Boolean enabled) (at <d917a79751444cb5b4a389f044c18334>:0)
BehaviorDesigner.Editor.TaskInspector.DrawTaskInspector (BehaviorDesigner.Runtime.BehaviorSource behaviorSource, BehaviorDesigner.Editor.TaskList taskList, BehaviorDesigner.Runtime.Tasks.Task task, System.Boolean enabled) (at <d917a79751444cb5b4a389f044c18334>:0)
BehaviorDesigner.Editor.BehaviorDesignerWindow.DrawPropertiesBox () (at <d917a79751444cb5b4a389f044c18334>:0)
BehaviorDesigner.Editor.BehaviorDesignerWindow.Draw () (at <d917a79751444cb5b4a389f044c18334>:0)
BehaviorDesigner.Editor.BehaviorDesignerWindow.OnGUI () (at <d917a79751444cb5b4a389f044c18334>:0)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <437ba245d8404784b9fbab9b439ac908>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at <887a438259064e89922419bc7b8810ab>:0)
UnityEditor.HostView.Invoke (System.String methodName) (at <887a438259064e89922419bc7b8810ab>:0)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at <887a438259064e89922419bc7b8810ab>:0)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at <887a438259064e89922419bc7b8810ab>:0)
UnityEditor.DockArea.OldOnGUI () (at <887a438259064e89922419bc7b8810ab>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Boolean canAffectFocus) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Boolean canAffectFocus) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.CommandEventDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <085559680b9141e8b8c144c684aaa6d7>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <1006e0a2a62b4fc092e72663bea815ca>:0)
UnityEditor.PopupCallbackInfo:SetEnumValueDelegate(Object, String[], Int32)
 

Justin

Administrator
Staff member
I just tried to reproduce this but wasn't able to. Do you get the same error if you try again in a fresh project with the latest Behavior Designer version?
 
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