Compiler Error CS0111
Type 'class' already defines a member called 'member' with the same parameter types
CS0111 occurs if a class contains two member declarations with the same name and parameter types. For more information, see Methods (C# Programming Guide).
Example
The following sample generates CS0111.
// CS0111.cs
class A
{
void Test() { }
public static void Test(){} // CS0111
public static void Main() {}
}