在C＃vscode中使用指令汇编引用错误丢失

Question

When I try to compile a simple application I made in VSCode with 2 .cs files one with a class, and the other with the main method, I get an error: cannot find type or namespace "MyClass" . I do not understand why this happens, as I have put both the main method and class declaration in the same namespace.

MyClass.cs

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

namespace classes_test.src
{
    public class MyClass
    {
        public void testFunc() { Console.WriteLine("Hello World!"); }
    }
}```

Program.cs

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

namespace classes_test
{
    class Program
    {
        static void Main(string[] args)
        {
            MyClass myClass = new MyClass();

            myClass.testFunc();
            Console.WriteLine("Hello World!");
        }
    }
}

I want the console to print Hello World! , but instead I get this error.

Answer 1

classes_test.src

and

 classes_test

are not the same Namespace. In order to set your class visible to the main method, you have to use the following using statement.

using classes_test.src;

This is a quite common mistake, especially for those who are c#-newbie. Including a namespace, DOES NOT include the subnamespaces