Question

lately I remove just code from my machine and since than my error list is broken.
This code (in the real time error detection) is legit:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            fifi.ff.ww;
        }
    }
}

Answer 1

You can bring back the Visual Studio error reporting from Visual Studio Tools - Options - Text Editor - C# - Advanced - Underline errors in the editor/Show live semantic errors

JustCode has built-in error reporting and it stops the Visual Studio one as the editor gets quite messy with both of them.