Cannot install package kmod-cfg80211.

Hello,
  When I install the package kmod-cfg80211 for mini2440 which running
OpenWrt Backfire 10.03, it will show the error information as following:

  Collected errors:
* satisfy_dependencies_for: Cannot satisfy the following dependencies for
kmod-cfg80211:
* satisfy_dependencies_for:     kmod-crypto-arc4 *
satisfy_dependencies_for:     kmod-crypto-aes *
* opkg_install_cmd: Cannot install package kmod-cfg80211.

but kmod-crypto-arc4 and kmod-crypto-aes are included in kmod-crypto-core
that have been installed for mini2440.

here is the config information :

--- kmod-crypto-core.................................. Core CryptoAPI
modules                                                                    
                    
  │ │ ---   kmod-crypto-aes.............................. AES
cipher CryptoAPI module                                                    
                                
  │ │ ---   kmod-crypto-arc4...................... ARC4 (RC4)
cipher CryptoAPI module 

How should I do now?
Is there somebody can help me?

What about ask on openwrt mailing list/forum?