NullReferenceException: Object reference not set to an instance of an object
UiUnlocker.ForTutorInUpgradesLock (Boolean state) (at Assets/Scripts/UI/UiUnlocker.cs:122)
MainUIController.LockTutorInUpgrades (Boolean state) (at Assets/Scripts/UI/MainUIController.cs:390)
TutorialManager.CompleteTutorialStep (TutorialAction tutorialAction) (at Assets/Scripts/Tutorial/TutorialManager.cs:259)
TutorialPage.CompleteTutorialStep (TutorialAction tutorialAction) (at Assets/Scripts/Tutorial/TutorialPage.cs:22)
OpenBarricadesWindowStepNoBlock.OnButtonClick () (at Assets/Scripts/Tutorial/TutorialSteps/OpenBarricadesWindowStepNoBlock.cs:30)
UnityEngine.Events.InvokableCall.Invoke () (at /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent.cs:165)
UnityEngine.Events.UnityEvent.Invoke () (at /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs:58)
UnityEngine.UI.Button.Press () (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:36)
UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:45)
UnityEngine.EventSystems.ExecuteEvents.Execute (IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:50)
UnityEngine.EventSystems.ExecuteEvents.Execute[IPointerClickHandler] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.EventFunction`1 functor) (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:261)
UnityEngine.EventSystems.EventSystem:Update()