Inconsistent accessibility: base class is less accessible than class

Question

So I have an abstract base class in a DLL and child classes of that class. I want the childs to be public, but the base to be private so that it cannot be accessed outside o

Answer 1

Just to clarify what I was saying in comments on @Marc Gravel's answer you could

public ChildClass : ParentClass
{

}

public ParentClass
{
   internal void MethodIdontWantToExpose()
  {

  }

}

That said an interface is probably the best solution