Hello guys!

I'm trying to use aircrack to get the key that I have captured but I get this error message, was wondeing if anyone could help. Thanks in advance

root@bt:~# aircrack-ng wep-01.cap
Opening wep-01.cap
Read 183502 packets.

# BSSID ESSID Encryption

1 A8:0D:72:BF:0A:8D SKYBASC WPA (1 handshake)

Choosing first network as target.

Opening wep-01.cap
Please specify a dictionary (option -w).

Quitting aircrack-ng..