asp.net mvc - MVC Razor view Intellisense broken in VS 2013/2015/2017

Question

I have an existing project written in VS2010 which when loaded in VS2010 works perfectly.

When I load this same project in VS2013 the MVC Razor views contain lots of errors as if the config file is missing from the views folder.

It appears to have not loaded the Razor editor correctly using the config files from both the root and the views folder and instead gives me errors like ...

The name 'model' does not exist in the current context

and ...

'System.Web.WebPages.Html.HtmlHelper' does not contain a definition for 'LabelFor' 
and no extension method 'LabelFor' accepting a first argument of type 
'System.Web.WebPages.Html.HtmlHelper' could be found 
(are you missing a using directive or an assembly reference?)

...

Any idea what would cause this?

Edit: Config files as requested ....

From main web.config file (not all of it as it's way too big to post)

<runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
        <dependentAssembly>
            <assemblyIdentity name="Ninject" culture="neutral" publicKeyToken="c7192dc5380945e7" />
            <bindingRedirect newVersion="3.0.0.0" oldVersion="0.0.0.0-3.0.0.0" />
        </dependentAssembly>
        <dependentAssembly>
            <assemblyIdentity name="Microsoft.Practices.EnterpriseLibrary.Validation" culture="neutral" publicKeyToken="31bf3856ad364e35" />
            <bindingRedirect newVersion="5.0.505.0" oldVersion="0.0.0.0-5.0.505.0" />
        </dependentAssembly>
        <dependentAssembly>
            <assemblyIdentity name="System.Web" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
            <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
        </dependentAssembly>
        <dependentAssembly>
            <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
            <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="3.0.0.0" />
        </dependentAssembly>
        <dependentAssembly>
            <assemblyIdentity name="Microsoft.Practices.ServiceLocation" publicKeyToken="31bf3856ad364e35" culture="neutral" />
            <bindingRedirect oldVersion="0.0.0.0-1.2.0.0" newVersion="1.2.0.0" />
        </dependentAssembly>
    </assemblyBinding>
</runtime>

Config file in "~/Views/" ...

<?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" />
                <add namespace="Emedia.Common.Mvc.Views.Helpers"/>
                <add namespace="Emedia.Common.Mvc.Views.Extensions"/>
        <add namespace="Emedia.Common.Utilities"/>
        <add namespace="Emedia.Common.Utilities.Extensions"/> 
        <add namespace="Emedia.Common.Mvc.Controllers.Helpers"/>
                <add namespace="Emedia.Resources.Service"/>
        <add namespace="Emedia.Subscriber.Controllers"/>
        <add namespace="Emedia.Subscriber.Controllers.ViewModels"/>
            </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>
        <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>

Answer 1

I considered editing @ChrisMoschini's post, but thought it was different enough. My issue was that I started a new MVC5 application, and blindly copied over too many web.config settings from an old MVC3 project I wanted to use as a template/starting point. Doing this caused me to have some invalid versions referenced in my web.config.

To fix, I created another new MVC5 project and made sure the following config values in my bad project matched the vanilla, unmodified MVC5 app. Again, do not blindly copy these version numbers. Just make sure they match a vanilla MVC app of the version that you're trying to get to work

in root web.config:

<appSettings>
    ...
    <add key="webpages:Version" value="3.0.0.0"/> 
    ...
</appSettings>
<system.web>
    ...
    <compilation debug="true" targetFramework="4.5.1"/>
    <httpRuntime targetFramework="4.5.1"/>
    ...
</system.web>

in the ViewsWeb.config:

<sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
    ...
    <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    ...
</sectionGroup>


<system.web.webPages.razor>
  ...
  <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
  ...
</system.web.webPages.razor>