Alright, I've been wrestling with this all night long, I followed this guide TriiForce | to try and get virtual console games playing from my HDD, Everything goes smoothly until I select "Use USB-NAND" in Triiforce, at which point I get the following error:

Loading...Error: could not get dir entry count! (result: -1)
Reading folder /title/00010001 failed
Error getting the title list
Press any button

Any ideas are appreciated, thanks.