C# Edit and Continue: error 4023

Adding a method body will prevent the debug session from continuing while Edit and Continue is enabled

This error indicates that you tried to add a method body, indexer, property, accessor, operators, constructors, destructors, or event.

Consider the following code:

abstract class Base

{

protected abstract void Method();

}

class Program : Base

{

static void Main(string[] args)

{

...

}

protected override void Method() { }

}

If you step into Main, then remove the semicolon after the declaration of Method in the base class and add {}, this error occurs.

To correct this error

Undo the changes, and then continue debugging without the changes.

—or—

On the Debug menu, click Stop Debugging, then make the changes, and start a new debugging session.