Error "The view at '~/Views/Page/home.aspx' must derive from ViewPage, ViewPage<TViewData>, ViewUserControl, or ViewUserControl<TViewData>"
Solution 1
You might unintentionally have two versions of the MVC framework loaded into the same application. To confirm, download MVC 2 Futures from http://aspnet.codeplex.com/releases/view/41742. There is a file MvcDiagnostics.aspx in this ZIP file.
- Copy MvcDiagnostics.aspx to the root of your web project.
- Reproduce the error.
- After reproducing the error, go to /MvcDiagnostics.aspx and see if it complains (will be in bold red lettering) about multiple versions of the framework being loaded. The tool should suggest a resolution if this is the case.
Don't forget to delete MvcDiagnostics.aspx from your project when you are done.
Solution 2
I was getting this error upgrading my MVC 1.0 project to MVC 2.0. If you are doing this have a look at http://weblogs.asp.net/leftslipper/archive/2010/03/10/migrating-asp-net-mvc-1-0-applications-to-asp-net-mvc-2-rtm.aspx
Double check your web.config against a new MVC 2.0 project.
Solution 3
Doing either a batch->build->clea
n at the solution level OR a clean at the project level usually takes care of this if you have already done the due diligence of removing/replacing the undesired version(s) of System.Web.Mvc
from project references and *.config files...
Glenn Slaven
I'm Principal Engineer at http://www.section.io Been coding for about 20 years now. I'm married & have 4 great kids
Updated on August 07, 2020Comments
-
Glenn Slaven almost 4 years
I've just installed MVC2 and I've got a view that looks like this
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Home.Master" Inherits="System.Web.Mvc.ViewPage" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Home </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2>Home</h2> </asp:Content>
And the controller is just returning the view. But when I run the page I get this error:
System.InvalidOperationException: The view at '~/Views/Page/home.aspx' must derive from ViewPage, ViewPage, ViewUserControl, or ViewUserControl.