Empty switch block
The compiler detected a switch block with no case or default statement. A switch block must have one or more case or default statements.
The following sample generates CS1522:
using System; class x { public static void Main() { int i = 6; switch(i) { // CS1522 // add something to the switch block, for example: /* case (5): Console.WriteLine("5"); return; default: Console.WriteLine("not 5"); return; */ } } }