upgrade error

[x 5]

root@sf4008:~# opkg upgrade
Configuring alsa-state.
/usr/sbin/alsactl: load_state:1735: No soundcards found...
Collected errors:
* pkg_run_script: package "alsa-state" postinst script returned status 19.
* opkg_configure: alsa-state.postinst returned 19.
root@sf4008:~#

this happens every time i tray to install a plugin.