CODEWITHSUNDEEP
c#asp.netasp.net-mvcrazor
Rakin
Rakin

Reputation: 1279

Visual Studio displaying errors even if projects build successfully in Razor html

Intellisense not working for any razor html tags. Also showing Red line in all razor html tags (@Html.TexBox, @Html.DropdownList MultiSelect etc)

Three types error are showing in Visual Studio Error Window.

Error #1:

The type arguments for method 'System.Web.Mvc.Html.InputExtensions.TextBoxFor(System.Web.Mvc.HtmlHelper, System.Linq.Expressions.Expression>, System.Collections.Generic.IDictionary)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

Error #2:

One or more types required to compile a dynamic expression cannot be found. Are you missing references to Microsoft.CSharp.dll and System.Core.dll?

Error #3:

Error 40 The type arguments for method 'System.Web.Mvc.Html.InputExtensions.HiddenFor(System.Web.Mvc.HtmlHelper, System.Linq.Expressions.Expression>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

Please see the attached link for more information.

enter image description here
enter image description here

Upvotes: 10

Views: 2857

Answers (5)

setemalky
setemalky

Reputation: 31

This has happened to me also, apparently the intellisense stoped working so everything in the razor views was shown as an error, but the project compiled fine and even the views weren't throwing errors.

Googling I found this page: https://lostindetails.com/articles/fixing-razor-intellisense

That's what worked for me, deleting the cache folder in this location: C:\Users\username\AppData\Local\Microsoft\VisualStudio\14.0\ComponentModelCache

changing the 14.0 for the appropiate Visual Studio version.

Credits to the guy that wrote that website.

Upvotes: 0

Anil
Anil

Reputation: 21

You need to have following section in your web.config (Root should be fine)

    <system.web>
        <compilation debug="true" targetFramework="4.6.1">
            <assemblies>
                <add assembly="System.Web.Helpers, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
            </assemblies>
       </compilation>
    </system.web>

Replace System.Web.Helpers version as per your reference.

Upvotes: 1

Rakin
Rakin

Reputation: 1279

Problem solved deleted all the contents from the following folder.

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files

Thank you all for your time. :)

Upvotes: 8

CF5
CF5

Reputation: 1173

If the close and rebuild doesn't sort it I suspect there is an issue with your project file.

Create a new ASP.net web app and copy your files over. A bit of a pain but it will probably work.

Upvotes: 0

Felippe Rangel
Felippe Rangel

Reputation: 94

That happens to me from time to time, usually rebuilding the project which contains the errors works for me. Did you try that?

Let me know.

Upvotes: 0

Related Questions