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Music Theory Exam update – session two

On the basis of government advice, we are cancelling the Music Theory exams due to take place later in 2020. We are sorry for any inconvenience and thank you for your ongoing loyalty and support

System.Web.HttpException (0x80004005): 执行处理程序“System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper”的子请求时出错。 ---> System.Web.HttpException (0x80004005): 执行处理程序“System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper”的子请求时出错。 ---> System.ArgumentNullException: 值不能为 null。
参数名: mediaItem
   在 Umbraco.Web.ImageCropperTemplateExtensions.GetCropUrl(IPublishedContent mediaItem, Nullable`1 width, Nullable`1 height, String propertyAlias, String cropAlias, Nullable`1 quality, Nullable`1 imageCropMode, Nullable`1 imageCropAnchor, Boolean preferFocalPoint, Boolean useCropDimensions, Boolean cacheBuster, String furtherOptions, Nullable`1 ratioMode, Boolean upScale)
   在 Umbraco.Web.ImageCropperTemplateExtensions.GetCropUrl(IPublishedContent mediaItem, String cropAlias)
   在 ASP._Page_Views_OnYourMarks_Intro_cshtml.Execute() 位置 D:\home\site\wwwroot\Views\OnYourMarks\Intro.cshtml:行号 36
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   在 System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   在 System.Web.WebPages.StartPage.ExecutePageHierarchy()
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   在 Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   在 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
   在 System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.b__1(IAsyncResult asyncResult)
   在 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
   在 System.Web.Mvc.Controller.<>c.b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState)
   在 System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   在 System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
   在 System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   在 System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   在 System.Web.Mvc.MvcHandler.<>c.b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)
   在 System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   在 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   在 System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.<>c__DisplayClass5_0.b__0()
   在 System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.Wrap[TResult](Func`1 func)
   在 System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride)
   在 System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride)
   在 System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage)
   在 System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm)
   在 System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter)
   在 System.Web.Mvc.Html.ChildActionExtensions.Action(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues)
   在 ASP._Page_Views_Partials_Grid_Editors_DocTypeGridEditor_OnYourMarksBlock_cshtml.Execute() 位置 D:\home\site\wwwroot\Views\Partials\Grid\Editors\DocTypeGridEditor\OnYourMarksBlock.cshtml:行号 14
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   在 System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   在 Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   在 System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   在 Our.Umbraco.DocTypeGridEditor.Web.Extensions.HtmlHelperExtensions.RenderDocTypeGridEditorItem(HtmlHelper helper, IPublishedContent content, String editorAlias, String viewPath, String previewViewPath, Boolean isPreview)
   在 ASP._Page_Views_Partials_Grid_TrilliumContentFilterDocTypeGridEditor_Single_cshtml.Execute() 位置 D:\home\site\wwwroot\Views\Partials\Grid\TrilliumContentFilterDocTypeGridEditor_Single.cshtml:行号 5
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   在 System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   在 Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   在 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
   在 System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.b__1(IAsyncResult asyncResult)
   在 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
   在 System.Web.Mvc.Controller.<>c.b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState)
   在 System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   在 System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
   在 System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   在 System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   在 System.Web.Mvc.MvcHandler.<>c.b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)
   在 System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   在 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   在 System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.<>c__DisplayClass5_0.b__0()
   在 System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.Wrap[TResult](Func`1 func)
   在 System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride)
   在 System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride)
   在 System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage)
   在 System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm)
   在 System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter)
   在 System.Web.Mvc.Html.ChildActionExtensions.Action(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues)
   在 ASP._Page_views_partials_grid_trilliumcontentfilterdoctypegrideditor_cshtml.Execute() 位置 D:\home\site\wwwroot\views\partials\grid\trilliumcontentfilterdoctypegrideditor.cshtml:行号 28
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   在 System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   在 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   在 Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   在 System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   在 ASP._Page_Views_Partials_grid_editors_base_cshtml.Execute() 位置 D:\home\site\wwwroot\Views\Partials\grid\editors\base.cshtml:行号 22

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