Compiler Warning (level 3) CS0169
The private field 'class member' is never used
A private variable was declared but never referenced. A common way to generate this warning is when you declare a private member of a class and do not use it.
The following sample generates CS0169:
// compile with: /W:3
using System;
public class ClassX
{
int i; // CS0169, i is not used anywhere
public static void Main()
{
}
}