MissingReferenceException: The object of type 'GameObject' has been destroyed but you are still trying to access it. Your script should either check if it is null or you should not destroy the object. UnityEditor.GameObjectInspector.DoRenderPreview () (at C:/buildslave/unity/build/Editor/Mono/Inspector/GameObjectInspector.cs:680) UnityEditor.GameObjectInspector.OnPreviewGUI (Rect r, UnityEngine.GUIStyle background) (at C:/buildslave/unity/build/Editor/Mono/Inspector/GameObjectInspector.cs:745) UnityEditor.Editor.OnInteractivePreviewGUI (Rect r, UnityEngine.GUIStyle background) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorBindings.gen.cs:309) UnityEditor.ObjectPreview.DrawPreview (IPreviewable defaultPreview, Rect previewArea, UnityEngine.Object[] targets) (at C:/buildslave/unity/build/Editor/Mono/Inspector/Editor.cs:225) UnityEditor.Editor.DrawPreview (Rect previewArea) (at C:/buildslave/unity/build/Editor/Mono/Inspector/Editor.cs:522) UnityEditor.InspectorWindow.DrawPreviewAndLabels () (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:759) UnityEditor.InspectorWindow.OnGUI () (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:386) System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)