[RuntimeBinderException: 无法对 null 引用执行运行时绑定]
CallSite.Target(Closure , CallSite , Object ) +153
System.Dynamic.UpdateDelegates.UpdateAndExecute1(CallSite site, T0 arg0) +487
CallSite.Target(Closure , CallSite , Object ) +271
Evan.WebPageUI.Base.GetTopLevelChannel(Object _curChannel) +671
System.Dynamic.UpdateDelegates.UpdateAndExecute2(CallSite site, T0 arg0, T1 arg1) +501
System.Dynamic.UpdateDelegates.UpdateAndExecute2(CallSite site, T0 arg0, T1 arg1) +501
Evan.WebPageUI.Base..ctor() +9666
Web.PageUI.Index..ctor() +246
Web.templates.support.contrast..ctor() +72
ASP.templates_support_contrast_aspx..ctor() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\6e6d662d\10411eed\App_Web_oafm0bkv.0.cs:0
__ASP.FastObjectFactory_app_web_oafm0bkv.Create_ASP_templates_support_contrast_aspx() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\6e6d662d\10411eed\App_Web_oafm0bkv.4.cs:0
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp) +133
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +44
System.Web.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +378
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +137
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