无法访问本页的原因是：

引发类型为“System.Web.HttpException”的异常。
System.Web.HttpException (0x80004005): 引发类型为“System.Web.HttpException”的异常。 ---> System.Web.HttpParseException (0x80004005): h:\wwwroot\com.sjfzxm.gwj\Views\Shared\Index.Master(39): error CS1061: “System.Web.Mvc.HtmlHelper”不包含“RenderAction”的定义，并且找不到可接受类型为“System.Web.Mvc.HtmlHelper”的第一个参数的扩展方法“RenderAction”(是否缺少 using 指令或程序集引用?) ---> System.Web.HttpCompileException (0x80004005): h:\wwwroot\com.sjfzxm.gwj\Views\Shared\Index.Master(39): error CS1061: “System.Web.Mvc.HtmlHelper”不包含“RenderAction”的定义，并且找不到可接受类型为“System.Web.Mvc.HtmlHelper”的第一个参数的扩展方法“RenderAction”(是否缺少 using 指令或程序集引用?) 在 System.Web.Compilation.BuildManager.PostProcessFoundBuildResult(BuildResult result, Boolean keyFromVPP, VirtualPath virtualPath) 在 System.Web.Compilation.BuildManager.GetBuildResultFromCacheInternal(String cacheKey, Boolean keyFromVPP, VirtualPath virtualPath, Int64 hashCode, Boolean ensureIsUpToDate) 在 System.Web.Compilation.BuildManager.GetVPathBuildResultFromCacheInternal(VirtualPath virtualPath, Boolean ensureIsUpToDate) 在 System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) 在 System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) 在 System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean ensureIsUpToDate) 在 System.Web.UI.BaseTemplateParser.GetReferencedType(VirtualPath virtualPath, Boolean allowNoCompile) 在 System.Web.UI.PageParser.ProcessMainDirectiveAttribute(String deviceName, String name, String value, IDictionary parseData) 在 System.Web.UI.TemplateParser.ProcessMainDirective(IDictionary mainDirective) 在 System.Web.UI.TemplateParser.ProcessException(Exception ex) 在 System.Web.UI.TemplateParser.ParseStringInternal(String text, Encoding fileEncoding) 在 System.Web.UI.TemplateParser.ParseString(String text, VirtualPath virtualPath, Encoding fileEncoding) 在 System.Web.UI.TemplateParser.ParseFile(String physicalPath, VirtualPath virtualPath) 在 System.Web.UI.TemplateParser.ParseInternal() 在 System.Web.UI.TemplateParser.Parse() 在 System.Web.Compilation.BaseTemplateBuildProvider.get_CodeCompilerType() 在 System.Web.Compilation.BuildProvider.GetCompilerTypeFromBuildProvider(BuildProvider buildProvider) 在 System.Web.Compilation.BuildProvidersCompiler.ProcessBuildProviders() 在 System.Web.Compilation.BuildProvidersCompiler.PerformBuild() 在 System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) 在 System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) 在 System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) 在 System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean throwIfNotFound) 在 System.Web.Mvc.BuildManagerWrapper.System.Web.Mvc.IBuildManager.FileExists(String virtualPath) 在 System.Web.Mvc.BuildManagerViewEngine.FileExists(ControllerContext controllerContext, String virtualPath) 在 System.Web.Mvc.VirtualPathProviderViewEngine.GetPathFromGeneralName(ControllerContext controllerContext, List`1 locations, String name, String controllerName, String areaName, String cacheKey, String[]& searchedLocations) 在 System.Web.Mvc.VirtualPathProviderViewEngine.GetPath(ControllerContext controllerContext, String[] locations, String[] areaLocations, String locationsPropertyName, String name, String controllerName, String cacheKeyPrefix, Boolean useCache, String[]& searchedLocations) 在 System.Web.Mvc.VirtualPathProviderViewEngine.FindView(ControllerContext controllerContext, String viewName, String masterName, Boolean useCache) 在 System.Web.Mvc.ViewEngineCollection.<>c__DisplayClassc.b__b(IViewEngine e) 在 System.Web.Mvc.ViewEngineCollection.Find(Func`2 lookup, Boolean trackSearchedPaths) 在 System.Web.Mvc.ViewEngineCollection.FindView(ControllerContext controllerContext, String viewName, String masterName) 在 System.Web.Mvc.ViewResult.FindView(ControllerContext context) 在 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) 在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) 在 System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass1c.b__19() 在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) 在 System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass1c.<>c__DisplayClass1e.b__1b() 在 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) 在 System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) 在 System.Web.Mvc.Controller.ExecuteCore() 在 System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) 在 System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) 在 System.Web.Mvc.MvcHandler.<>c__DisplayClass6.<>c__DisplayClassb.b__5() 在 System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass1.b__0() 在 System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8`1.b__7(IAsyncResult _) 在 System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End() 在 System.Web.Mvc.MvcHandler.<>c__DisplayClasse.b__d() 在 System.Web.Mvc.SecurityUtil.b__0(Action f) 在 System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) 在 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) 在 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) 在 System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() 在 System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) 在 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)