[BUG] _/!\ _ERROR ! Creating New Action or decision SCRIPT!!

[men11]

Following this ( OUT DATED ) TOTURIAL 
also (OUT DATED ) Documentation 





5:36 check Damage is no longer available only ( check damage type and check damage amount ) and neither of them has look at damage sender

2- Creating new Action/Decision Script 

Outputs this error:

NullReferenceException: Object reference not set to an instance of an object
Invector.vCharacterController.AI.FSMBehaviour.vNodeMenus.CreateScriptAsset (System.String templatePath, System.String destName) (at Assets/Invector-AIController/FSM/Editor/Menus/vNodeMenus.cs:92)
Invector.vCharacterController.AI.FSMBehaviour.vNodeMenus.CreateFSMScript (System.String assetTemplate, System.String defaultName) (at Assets/Invector-AIController/FSM/Editor/Menus/vNodeMenus.cs:68)
Invector.vCharacterController.AI.FSMBehaviour.vNodeMenus.CreateNewAction () (at Assets/Invector-AIController/FSM/Editor/Menus/vNodeMenus.cs:36)
Invector.vCharacterController.AI.FSMBehaviour.vFSMPropertyView+<>c.<AddComponentContext>b__9_0 () (at Assets/Invector-AIController/FSM/Editor/Views/vFSMPropertyView.cs:222)
UnityEditor.GenericMenu.CatchMenu (System.Object userData, System.String[] options, System.Int32 selected) (at <78f1ad0f25c84e3ca853e639f50d95f5>:0)


Please help !!