System.ArgumentException: 已經加入含有相同索引鍵的項目。
   於 System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   於 System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   於 MOJ.Extend.Utilities.Extension.IPublishContentHelper.loadMediaMap()
   於 MOJ.Extend.Utilities.Extension.IPublishContentHelper.GetExtendMediaPickerInfo(IPublishedContent content, String alias, Boolean setFirstMedia)
   於 ASP._Page_Views_MacroPartials_unit_Header_cshtml.Execute()
   於 System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   於 System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   於 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   於 Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   於 Umbraco.Web.Mvc.ControllerExtensions.RenderViewResultAsString(ControllerBase controller, ViewResultBase viewResult)
   於 Umbraco.Web.Macros.PartialViewMacroEngine.Execute(MacroModel macro, IPublishedContent content)
   於 umbraco.macro.LoadPartialViewMacro(MacroModel macro)
   於 umbraco.macro.renderMacro(Hashtable pageElements, Int32 pageId)
   於 Umbraco.Web.UmbracoComponentRenderer.RenderMacro(macro m, IDictionary`2 parameters, page umbracoPage)
   於 ASP._Page_Views_Partials_TypedGrid_Editors_macro_cshtml.Execute()
   於 System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   於 System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   於 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   於 Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   於 System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   於 ASP._Page_Views_Partials_TypedGrid_Editors_Base_cshtml.Execute()