token@token:~$ sudo kbuildsycoca --incremental
Warning: kbuildsycoca is unable to register with DCOP.
kbuildsycoca running...
X Error: BadDevice, invalid or uninitialized input device 166
  Major opcode:  144
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 166
  Major opcode:  144
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
kbuildsycoca running...
Reusing existing ksycoca
kio (KSycoca): ERROR: No database available!
Reusing existing ksycoca
KWrited - Listening on Device /dev/pts/2
kded: Launching previous backup analyse.
kio (KSycoca): ERROR: No database available!