Aspx pages will not load after upgrading from Asp.net MVC 2 to 3 RC

Question

I upgraded to Asp.net MVC 3 RC last night and I followed the instructions on the release notes. However, normal Aspx pages no longer work.

For example, when I go to the root (Home/Index), the following error occurs:

The view at '~/Views/Home/Index.aspx' must derive from ViewPage, ViewPage<TModel>, ViewUserControl, or ViewUserControl<TModel>. 

This is using a barely modified version of the original MVC Home/Index view. The code is:

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>  <asp:Content ID="indexTitle" ContentPlaceHolderID="TitleContent" runat="server">     Home Page </asp:Content>  <asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server">     <h2><%= Html.Encode(ViewData["Message"]) %></h2>     <p>         <%= Html.ActionLink("Project List", "List", "Project", new { area = "writing" }, null) %>     </p> </asp:Content> 

It is setup to inherit from ViewPage, so I'm not sure what the issue is.

The master page is unmodified from what MVC installs.

Any ideas?

Answer 1

make sure you web.config has

<assemblies>     <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />     <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />     <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />     <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />     <add assembly="WebMatrix.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />     <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />     <add assembly="System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />   </assemblies> 

and this

<runtime> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">   <dependentAssembly>     <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />     <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="3.0.0.0" />   </dependentAssembly> </assemblyBinding> 

as well as in any Areas/Web.config

Update them as needed and you should get to a better place