The name "WebHost" does not exist

Describe the bug

I get the following error: The name ‘WebHost’ does not exist in the current context. As I can see the WebHost

To Reproduce

I would like to create a WebApi project using .Net Core 2.2.0. I’m using the scaffolded solution proposed from Visual Studio.

Program.cs (which I see is the same as the doc):

{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateWebHostBuilder(args).Build().Run();
        }

        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>();
    }
}

Throws the following error

VS Community 15.9.4 NetCore 2.2.101

[alessandroros]

I tried but it doesn’t work for me. Just to repeat your steps:

1. Change Target Framework to 2.1
2. Save
3. Rechange Target Framework to 2.2
4. Save and Rebuild Projects

Correct?

Yes, steps are correct. But check if in csproj file something has been change after 1 and 3 steps. And make sure that Microsoft.AspNetCore.App (2.2.0) dll is added to the project.

Ok I added manually the line:

<PackageReference Include="Microsoft.AspNetCore.App" />

to the .csproj file of the project. Then I also noticed that for new application scaffolded by vs studio 2017 15.9.4 , the .csproj also adds in PropertyGroup:

<AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>

Rebuilded, and then now no more issues

[davidfowl]

Looks like it might be a resharper issue. Try updating reaharper