aplay -l = command not found

[Skywatch]

As above, after adding the hifiberry overlay to config.txt and rebooting I get the above message.

I tried aplay -l and sudo aplay -l, both with the same results.

I re-downloaded the image and flashed again, fully updated and upgraded to the latest image, still have this problem.

I was following the thread here to try and get it working again..... http://www.hifiberry.com/guides/configuring-linux-3-18-x/

Any help out there please?

S.