Arpspoof Error/ ARP Poisoning issue

so, just a question.

can i use arp poisoning in a wireless lan?

precisely, i have connected my pc to the router wireless.

i obtain always "couldn't arp for host ..." error.

for example:

192.168.1.71 my wlan1 pc card

192.168.1.254 my router.

192.168.1.76 pc target

i type arpspoof -i wlan1 -t 192.168.71 192.168.1.76, then i would like to type: arpspoof -i wlan1 -t 192.168.254 192.168.1.71

if i set my wlan1 card in monitor mode, arpspoof replies with "unknown physical layer type" error.

else if it replies with "could't arp for host".

thanks