Kernel does not exist in the Sitecore namespace

Question

Going through a strange Sitecore error. Applied the layout in Sitecore 6.6 using MVC for several different content elements, and I get this error:

c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\95ad0ba4\20f230f7\App_Web__sitecorelayout.cshtml.5d96958d.682ppzj_.0.cs(24): error CS0234: The type or namespace name 'Kernel' does not exist in the namespace 'Sitecore' (are you missing an assembly reference?) System.Web.HttpCompileException (0x80004005): c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\95ad0ba4\20f230f7\App_Web__sitecorelayout.cshtml.5d96958d.682ppzj_.0.cs(24): error CS0234: The type or namespace name 'Kernel' does not exist in the namespace 'Sitecore' (are you missing an assembly reference?) at System.Web.Compilation.AssemblyBuilder.Compile() at System.Web.Compilation.BuildProvidersCompiler.PerformBuild() at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean throwIfNotFound) at System.Web.Mvc.BuildManagerWrapper.System.Web.Mvc.IBuildManager.FileExists(String virtualPath) at System.Web.Mvc.VirtualPathProviderViewEngine.GetPathFromSpecificName(ControllerContext controllerContext, String name, String cacheKey, String[]& searchedLocations) at System.Web.Mvc.VirtualPathProviderViewEngine.GetPath(ControllerContext controllerContext, String[] locations, String[] areaLocations, String locationsPropertyName, String name, String controllerName, String cacheKeyPrefix, Boolean useCache, String[]& searchedLocations) at System.Web.Mvc.VirtualPathProviderViewEngine.FindPartialView(ControllerContext controllerContext, String partialViewName, Boolean useCache) at System.Web.Mvc.ViewEngineCollection.Find(Func`2 lookup, Boolean trackSearchedPaths) at System.Web.Mvc.HtmlHelper.FindPartialView(ViewContext viewContext, String partialViewName, ViewEngineCollection viewEngineCollection) 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 Sitecore.Mvc.Presentation.ViewRenderer.Render(TextWriter writer) at Sitecore.Mvc.Pipelines.Response.RenderRendering.ExecuteRenderer.Render(Renderer renderer, TextWriter writer, RenderRenderingArgs args) at Sitecore.Mvc.Pipelines.Response.RenderRendering.ExecuteRenderer.Process(RenderRenderingArgs args) at (Object , Object[] ) at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args) at Sitecore.Mvc.Pipelines.PipelineService.RunPipeline[TArgs](String pipelineName, TArgs args) at Sitecore.Mvc.Presentation.RenderingView.Render(ViewContext viewContext, TextWriter writer) at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass1c.b__19() at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) 

Things are set in 4 frameworks for assembly and application pool in IIS. I'm at a loss. Did this happen to anyone in the same scenario?

Answer 1

The problem arose because the Sitecore.Kernel namespace was added to the namespace part of the web.config file in the views directory. Removing this solution to the problem.

Worked with Sitecore support to solve the problem. Just thought about half an hour ago.

Answer 2

Since it compiles on the fly, maybe you can copy the sitecore dlls to a temporary ASP.NET folder, since this apparently happens when you compile and don't run, and therefore not a problem in the trash? Just suppose though.

If this does not work, maybe check the versions or try deleting everything in the temporary ASP.NET folder and try again.

Answer 3

I had the same problem. Right-click the Links folder → Add Link → Browse → select Sitecore.Kernel from the bin folder (in your project) → Create a solution again.

Answer 4

My problem was in the Target Framework. I was on .NET 4.5 when I was getting this problem. I upgraded to .NET 4.6 and the problem disappeared.