Visual Studio Code error can not explicitly assign protected access modifier to a class which is not-CodePudding

I code C # in VSCode version 1.63.2 and the problem is;

class ClassTwo Elements defined in a namespace cannot be explicitly declared as private, protected, protected internal, or private protected [test]csharp(CS1527)

I don't have any namespace declared in my .cs file now. At first, I had declared a namespace, then I remove it but the error still persists. What I've tried is to rename the class (it works, with different class name I don't face this problem), then I tried to remove the class file and recreate it with the same name (this did not work). I have a project named "test" with two classes and two .cs files with the same names, one is named ClassOne, the other one is ClassTwo.

ClassOne.cs

namespace test
{
    protected class ClassOne
    {
        
    }
}

ClassTwo.cs

protected class ClassTwo
{
    
}

test.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net5.0</TargetFramework>
  </PropertyGroup>

</Project>

Screenshot of the problem;

problem

CodePudding user response：

You can't declare a private or a protected class in a namespace. Classes are either public or internal (except for nested classes). This issue isn't related to VS Code, it's simply the compiler telling you did a mistake.

Quote from the documentation:

Classes that you declare directly within a namespace, not nested within other classes, can be either public or internal. Classes are internal by default.

EDIT 2

Now that you posted your code we can finally understand what's exactly your issue and provide you an answer.

You're using .NET 5 which is using C# 9 by default. Therefore the answer I wrote down bellow in the first EDIT section isn't relevant.

In C# when you don't declare any namespace in a file, your class is by default added to the global namespace

The global namespace is the namespace that contains namespaces and types that are not declared inside a named namespace.

See this page for more information.

Assuming you're correcting the error and changing your class to public or internal, you can then use it like this

var myTwoObject = new global::ClassTwo();

EDIT

I'm keeping this section just because it's useful information but since you then posted your code we can now tell that you're not in C# 10 therefore this isn't the correct answer

From your comment I now understand that you must have created a .NET 6 console application.

By default, console application in .NET 6 are generated with a new template which is valid starting from C# 10

Have a look at the documentation New C# templates generate top-level statements

You can access your class by doing

Quote from this doc:

The term top-level statements means the compiler generates the namespace, class, and method elements for your main program. You can look at the code for the new application and imagine that it contains the statements inside the Main method generated by earlier templates.

It means even if you don't declare a namespace, it is still generated at compile time. Consider the namespace implicit just like Implicit using directives.