新手求教

NullReferenceException
UnityEditor.InspectorWindow.HasLabel (UnityEngine.Object target, System.String assetPath) (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:646)
UnityEditor.InspectorWindow.HasLabel (UnityEngine.Object target) (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:641)
System.Linq.Enumerable+<CreateWhereIterator>c__Iterator1D`1[UnityEngine.Object].MoveNext ()
System.Collections.Generic.List`1[UnityEngine.Object].AddEnumerable (IEnumerable`1 enumerable) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/List.cs:128)
System.Collections.Generic.List`1[UnityEngine.Object]..ctor (IEnumerable`1 collection) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/List.cs:65)
System.Linq.Enumerable.ToArray[Object] (IEnumerable`1 source)
UnityEditor.InspectorWindow.GetInspectedAssets () (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:662)
UnityEditor.InspectorWindow.DrawPreviewAndLabels () (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:678)
UnityEditor.InspectorWindow.OnGUI () (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:448)
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/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
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/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:291)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:284)
UnityEditor.HostView.InvokeOnGUI (Rect onGUIPosition) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:251)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
不知道为什么出现这个问题，哪位大神可以帮忙解决一下？