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Compiler Error CS0059

Inconsistent accessibility: parameter type 'type' is less accessible than delegate 'delegate'

The return type and each of the types referenced in the formal parameter list of a method must be at least as accessible as the method itself (see 3.5.4 Accessibility constraints).

The following sample generates CS0059:

// CS0059.cs
class MyClass
// try the following line instead
// public class MyClass
{
}

public delegate void MyClassDel( MyClass iii);   // CS0059

public class a
{
   public static void Main()
   {
   }
}
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