I have the same problem, hope that someone find hot to solve this...

I'm a new user in Omega World. I was flashing the arduino dock when i realized that i forgot to install the py-serial module. So i tried to run the comand opkg update and after opkg install ...
So i got an error : "Package arduino-dock version 0.1-1 has no valid architecture omega"

How can i deal with this?

I've reset the omega to factory defaults, but i guess there´s another way to deal with this.