I've working through the tutorial on setting up the bow. I'm trying to add the an existing state preset under Shootable Weapon. The state is greyed out, when I try to add an existing preset, the preset doesn't appear in the state and I get the following error:
NullReferenceException: Object reference not set to an instance of an object
Opsive.UltimateCharacterController.Editor.Inspectors.StateSystem.StateInspector.AddExistingPreset (System.Type objType, Opsive.UltimateCharacterController.StateSystem.State[] states, UnityEditorInternal.ReorderableList reorderableList, System.String selectedIndexKey) (at Assets/Opsive/UltimateCharacterController/Editor/Inspectors/StateSystem/StateInspector.cs:329)
Opsive.UltimateCharacterController.Editor.Inspectors.StateSystem.StateBehaviorInspector.AddExistingPreset () (at Assets/Opsive/UltimateCharacterController/Editor/Inspectors/StateSystem/StateBehaviorInspector.cs:180)
UnityEditor.GenericMenu.CatchMenu (System.Object userData, System.String[] options, Int32 selected) (at C:/buildslave/unity/build/Editor/Mono/GUI/GenericMenu.cs:121)
Unity 2018.2.9f1
UCC 2.0.1
NullReferenceException: Object reference not set to an instance of an object
Opsive.UltimateCharacterController.Editor.Inspectors.StateSystem.StateInspector.AddExistingPreset (System.Type objType, Opsive.UltimateCharacterController.StateSystem.State[] states, UnityEditorInternal.ReorderableList reorderableList, System.String selectedIndexKey) (at Assets/Opsive/UltimateCharacterController/Editor/Inspectors/StateSystem/StateInspector.cs:329)
Opsive.UltimateCharacterController.Editor.Inspectors.StateSystem.StateBehaviorInspector.AddExistingPreset () (at Assets/Opsive/UltimateCharacterController/Editor/Inspectors/StateSystem/StateBehaviorInspector.cs:180)
UnityEditor.GenericMenu.CatchMenu (System.Object userData, System.String[] options, Int32 selected) (at C:/buildslave/unity/build/Editor/Mono/GUI/GenericMenu.cs:121)
Unity 2018.2.9f1
UCC 2.0.1