problem with metro app style lunching

Question

hi all i just begin developing with metro app style,but in last test ,vs 2012 appear an error message -this is it : Error1Error : DEP0700 : Registration of the app failed. Adding a tile failed because changes could not be committed to file 'C:\Users\hocine\AppData\Local\Microsoft\Windows\Application Shortcuts\1576162e-5190-4908-89bf-93144b632850_xfhpw6zrhqkpc\App.lnk' which represents the tile for app App. (0x80073cf6)App11

 please anyone help me