Block on nsd specific functions in /etc/wlan/shared

Dear All,
Now I meet the problem when the driver run in /etc/wlan/shared file.
The problem messages show:
+ /etc/wlan/shared: line 71: [: too many arguments
...
+ /etc/wlan/shared: line 131: _fwload: command not found
+ Firmware failed to load for device wlan0
+ wlanctl-ng: Permission denied
+ error: Autojoin indicated failure!
...
Can anybody tell me how to solve this trouble thing? Or, if the
"Autojoin" cannot work, is there any way to join the card manually?

Thanks for any hint! 

-- 
Bob