tile-def not working in netbeans

tiles-defs is working fine when i build the project in netbeans.
but, when i do , CLEAN AND BUILD, it does not load the tile-def at all.It is also not showing any error. It jsut show blank page.Nothing get loaded.

Why these happen when i do CLEAN AND BUILD?

hi

I have sloved it :)

Actualy i forgot to add structs framework :) which is required by my tiles-def !