Compiler Error CS0538

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'name' in explicit interface declaration is not an interface

An attempt was made to explicitly declare an interface, but an interface was not specified.

The following sample generates CS0538:

// CS0538.cs
interface MyIFace
{
   void F();
}

public class MyClass
{
   public void G()
   {
   }
}

class C: MyIFace
{
   void MyIFace.F()
   {
   }

   void MyClass.G()   // CS0538, MyClass not an interface
   {
   }
}