I have a problem using airmon-ng. I installed my wireless driver (Realtek RTL9191 SEvA wireless card):

Module                  Size  Used by
r8192se_pci           472209  0
I put the wireless card in monitor mode:

root@bt:~# iwconfig wlan0 mode monitor
root@bt:~# iwconfig wlan0
wlan0     802.11bg  Nickname:"rtl8191SEVA2"
          Mode:Monitor  Bit Rate=1 Mb/s
          Retry:on   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=10/100  Signal level=0 dBm  Noise level=-100 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
Also pretty strange "Bit Rate=1 Mb/s".

But when I try to run airmon-ng start wlan0 I get:

Interface       Chipset         Driver

wlan0                   rtl819xSE - [phy1]/usr/sbin/airmon-ng: line 316: /sys/class/ieee80211/phy1/add_iface: No such file or directory
mon0: ERROR while getting interface flags: No such device

                                (monitor mode enabled on mon0)
Or just:

[phy1]mon0: ERROR while getting interface flags: No such device

I searched on Google, and I found another driver, with patch, but it didn't work, same problem.
Also some answers were to install the last version of aircrack suite, but I already have it.

So, what can I do?