“The name 'HTML' does not exist in the cur

问题:

I´m starting to use "MVC 3" but I´m facing some little problems. In my Views, when I code something like this:

@if(Request.IsAuthenticated) {
    <text>Welcome <b>@Context.User.Identity.Name</b>!
    [ @Html.ActionLink("Log Off", "LogOff", "Account") ]</text>
}
else {
    @:[ @Html.ActionLink("Log On", "LogOn", "Account") ]
}

The objects like @Request and @Html is indicating an error: The name 'HTML' does not exist in the current context.

The same occurs with @Context, @ViewBag, @Layout, @Url and others.

See:

image http://i56.tinypic.com/28s1smp.jpg

But the code is correctly compiled with no errors. The problem is that I cannot use the Intellisense with theses objects in the Views. Is it normal? (I don´t think so). What could be happening?

I have reinstalled the MVC 3 framework but the same still occurs.

Note: this is a new project from scratch, not a MVC 2 migration. This occurs both with Razor engine and ASPX.

This is the Web.Config in the Views folder:

<?xml version="1.0"?>

<configuration>
  <configSections>
    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    </sectionGroup>
  </configSections>

  <system.web.webPages.razor>
    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    <pages pageBaseType="System.Web.Mvc.WebViewPage">
      <namespaces>
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
      </namespaces>
    </pages>
  </system.web.webPages.razor>

  <appSettings>
    <add key="webpages:Enabled" value="false" />
  </appSettings>

  <system.web>
    <httpHandlers>
      <add path="*" verb="*" type="System.Web.HttpNotFoundHandler"/>
    </httpHandlers>

    <!--
        Enabling request validation in view pages would cause validation to occur
        after the input has already been processed by the controller. By default
        MVC performs request validation before a controller processes the input.
        To change this behavior apply the ValidateInputAttribute to a
        controller or action.
    -->
    <pages
        validateRequest="false"
        pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
        pageBaseType="System.Web.Mvc.ViewPage, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
        userControlBaseType="System.Web.Mvc.ViewUserControl, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <controls>
        <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" namespace="System.Web.Mvc" tagPrefix="mvc" />
      </controls>
    </pages>
  </system.web>

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />

    <handlers>
      <remove name="BlockViewHandler"/>
      <add name="BlockViewHandler" path="*" verb="*" preCondition="integratedMode" type="System.Web.HttpNotFoundHandler" />
    </handlers>
  </system.webServer>
</configuration>

Thanks!

回答1:

You could try:

1. Close the View with the false errors.

2. Close Visual Studio

3. Reopen the same project

4. Open a different View then the one causing the errors

5. Close that View, hopefully you didn't see any of the similar errors in this View

6. Reopen the View that gave you problems earlier

回答2:

I have solved this issue with the old, good, wise Microsoft default solution: reinstall all the things again.

Uninstall and Reinstall the Visual Studio 2010 and MVC 3 Framework.

回答3:

Clean your solution and Under references. Then set the follow property:

System.Web.MVC file to Copy Local = True.

回答4:

All I had to do was close all views that were open in the editor and rebuild.

回答5:

For me this just seemed to be the fact that I had compiler warnings. Code would still compile and run ok but it was not until I fixed all the build warnings that my Intellisense starting working.

回答6:

What worked for me was closing Visual Studio, deleting the user option files (both solution and project level), then relaunching Visual Studio.

回答7:

<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
  <parameters>
    <parameter value="v11.0" />
  </parameters>
</defaultConnectionFactory>

solution for this problem in web.config

回答8:

I experienced this on ASP.NET MVC 4 as well, after uninstalling EntityFramework from my packages list.

I had to remove this section

<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, ....

that's left on the Web.config file... at the least it removed the errors from the errors list

回答9:

I tried to remove the project that is still in trouble from solution and add it back again, after which the problem had been gone.

回答10:

I had this same issue in MVC 4. None of these solutions worked for me. Instead, in Windows, I went into Control Panel -> Uninstall a program. Select Microsoft ASP.NET MVC 4 in the program list. Click 'Uninstall.' A 'Microsoft ASP.NET MVC 4 Setup' wizard will display. Click 'Repair.'

回答11:

Set the property of System.Web.MVC,Copy Local = True

回答12:

Apologies for the necro post.

Selecting "Build | Rebuild Solution" corrected this issue for me in Visual Studio 2015. In my case, the warnings occurred after renaming the primary namespace of a project. A rebuild set everything straight.

回答13:

In my case my Packages folder was missing including MVC and Razor so I have updated packages in packages.config, reopened the view and it worked.

回答14:

I'm using ASP .net core. Solved mine by upgrading Microsoft.AspNetCore.Mvc from 1.1.2 to 1.1.3.

回答15:

For me, I just restarted my Visual Studios and everything got fixed.

回答16:

Maybe I am a bit late to answer this question but this easy fix helped me:

Right click the file > Exclude from project. Right click the file > Include in project.