System.Exception: Exception while creating a value. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Marsman.UmbracoCodeFirst.Core.CodeFirstModelContext.MoveNextContext(Object instance, CodeFirstRegistration registration, CodeFirstModelContext parentContext)
at Marsman.UmbracoCodeFirst.Core.Modules.ContentModelModuleBase`3.<>c__DisplayClass16_0.<SetPropertyValueOnModel>b__0(Object x)
at Marsman.UmbracoCodeFirst.Converters.AutoDataTypeConverter`2.Create(Tdb input, Action`1 registerContext)
at Marsman.UmbracoCodeFirst.Converters.DataTypeConverterBase`2.Create(Object input, Action`1 registerContext)
at Marsman.UmbracoCodeFirst.Core.Modules.ContentModelModuleBase`3.SetPropertyValueOnModel(Object objectInstance, PropertyRegistration registration, Object umbracoStoredValue)
at Marsman.UmbracoCodeFirst.Core.Modules.ContentModelModuleBase`3.CopyPropertyValueToModel(IPublishedContent content, Object objectInstance, PropertyRegistration registration)
at Marsman.UmbracoCodeFirst.Core.Modules.ContentModelModuleBase`3.<>c__DisplayClass11_3.<CreateInstanceFromPublishedContent>b__1()
at Marsman.UmbracoCodeFirst.Core.CodeFirstLazyInitialiser.Execute()
at Marsman.UmbracoCodeFirst.Core.CodeFirstProxyInterceptor.InterceptGetter(IInvocation invocation, CodeFirstLazyInitialiser codeFirstLazyInitialiser)
at Marsman.UmbracoCodeFirst.Core.CodeFirstProxyInterceptor.Intercept(IInvocation invocation)
at Castle.DynamicProxy.AbstractInvocation.Proceed()
at Castle.Proxies.BannerTabProxy.get_Title()
at 麻豆原创.Web.Presentation.Models.Grid.GridExtensions.GetCardTitle(Page model) in D:\a\1\s\麻豆原创.Web.Presentation\Models\Grid\GridExtensions.cs:line 10
at ASP._Page_Views_Partials_Grid_Editors_Signpost_Content_cshtml.Execute()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
at System.Web.Mvc.HtmlHelper.RenderPartialInternal(String partialViewName, ViewDataDictionary viewData, Object model, TextWriter writer, ViewEngineCollection viewEngineCollection)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
at Umbraco.Web.CacheHelperExtensions.<>c__DisplayClass1_0.<CachedPartialView>b__0()
at Umbraco.Core.Cache.CacheProviderExtensions.<>c__DisplayClass0_0`1.<GetCacheItem>b__0()
at Umbraco.Core.Cache.DictionaryCacheProviderBase.<>c__DisplayClass10_0.<GetSafeLazy>b__0()
--- End of inner exception stack trace ---
at Umbraco.Core.Cache.HttpRuntimeCacheProvider.GetCacheItemInternal(String cacheKey, Func`1 getCacheItem, Nullable`1 timeout, Boolean isSliding, CacheItemPriority priority, CacheItemRemovedCallback removedCallback, Func`1 dependency)
at Umbraco.Core.Cache.HttpRuntimeCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem, Nullable`1 timeout, Boolean isSliding, CacheItemPriority priority, CacheItemRemovedCallback removedCallback, String[] dependentFiles)
at Umbraco.Core.Cache.DeepCloneRuntimeCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem, Nullable`1 timeout, Boolean isSliding, CacheItemPriority priority, CacheItemRemovedCallback removedCallback, String[] dependentFiles)
at Umbraco.Web.CacheHelperExtensions.CachedPartialView(CacheHelper cacheHelper, HtmlHelper htmlHelper, String partialViewName, Object model, Int32 cachedSeconds, String cacheKey, ViewDataDictionary viewData)
at Umbraco.Web.HtmlHelperRenderExtensions.CachedPartial(HtmlHelper htmlHelper, String partialViewName, Object model, Int32 cachedSeconds, Boolean cacheByPage, Boolean cacheByMember, ViewDataDictionary viewData, Func`3 contextualKeyBuilder)
at ASP._Page_views_partials_grid_editors_signpost_cshtml.Execute()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
at System.Web.Mvc.HtmlHelper.RenderPartialInternal(String partialViewName, ViewDataDictionary viewData, Object model, TextWriter writer, ViewEngineCollection viewEngineCollection)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model)
at ASP._Page_Views_Partials_grid_editors_base_cshtml.Execute()
