unity 3d加载脚本错误

当我在unity中加载脚本时，我面临以下问题，我是一个新的学习者，请告诉我如何修复它。

MissingFieldException: UnityEngine.Transform.Positiondynamicdispatchproperty . dispatcherfactory . findexextension (IEnumerable ' 1 candidate)dynamicdispatchproperty . dispatcherfactory . create (SetOrGet gos)Boo.Lang.Runtime.DynamicDispatching.PropertyDispatcherFactory.CreateSetter ()Boo.Lang.Runtime.RuntimeServices.DoCreatePropSetDispatcher(系统。目标，系统。类型类型，System。字符串名称，系统。对象的值)Boo.Lang.Runtime.RuntimeServices.CreatePropSetDispatcher(系统。目标，系统。字符串名称，系统。对象的值)Boo.Lang.Runtime.RuntimeServices + c__AnonStorey19灵活;> m__F ()Boo.Lang.Runtime.DynamicDispatching.DispatcherCache.Get (Boo.Lang.Runtime.DynamicDispatching。b . lang . runtime . dynamicdispatcher . dispatcherfactory factoryBoo.Lang.Runtime.RuntimeServices.GetDispatcher(系统。目标，系统。String cacheKeyName, System。类型[]cacheKeyTypes, boolean . lang . runtime . dynamicdispatchering . dispatcherfactory factoryBoo.Lang.Runtime.RuntimeServices.GetDispatcher(系统。目标，系统。对象[]args，系统。字符串cacheKeyName, boolean . lang . runtime . dynamicdispatchingdispatcherfactory factoryBoo.Lang.Runtime.RuntimeServices.SetProperty(系统。目标，系统。字符串名称，系统。对象的值)捡起OnMouseDown()(在Assets/scripts/pick .js:8)UnityEngine.SendMouseEvents: DoSendMouseEvents (Int32)