Use this one better:

root@OpenWrt:~# opkg update root@OpenWrt:~# opkg install minidlna
https://wiki.openwrt.org/doc/uci/minidlna

It seems that Ushare hasn’t been updated since a lot…
Anyway for Ushare: https://www.dd-wrt.com/wiki/index.php/Ushare_uPnP_media_server
It’s a dd-wrt guide but will give you some information.