The type or namespace name 'HttpGet' could not be found when add 'System.Web.Http' namespace

Question

I have one issue in MVC .

Currently I am working in MVC and the version is MVC4 . And I have 2 ActionResult Method, see below

[HttpGet]
 public ActionRe         


        

Answer 1

I ran into this problem on OS X using .NET Core. I was missing an entry for Microsoft.AspNetCore.Mvc in my project.json.

Before:

{
    "dependencies": {
        "Microsoft.NETCore.App": {
          "version": "1.0.0",
          "type": "platform"
        },
        ...,
        "Microsoft.Extensions.Configuration.CommandLine": "1.0.0"
      },
...
}

After:

{
    "dependencies": {
        "Microsoft.NETCore.App": {
          "version": "1.0.0",
          "type": "platform"
        },
        ...,
        "Microsoft.AspNetCore.Mvc": "1.0.0",
        "Microsoft.Extensions.Configuration.CommandLine": "1.0.0"
      },
...
}