Setting up "sub wheels", what am I doing wrong?

[thenoob]

Trying to setup all the classics wheels ie capcom classics, konami classics etc.

Setup the wheel in HQ and added fine

Added the .xml file to databases

Everything shows up in game audit

And everything g shows up in HS properly

Launch game

you did not supply.any valid rom extensions rocket-launcher. Please turn off 7z support or add at least one extension to Rom extension.

Where do I do that? I did them in HQ it looks like, kind of confused.??

[thenoob]

Ahhhhhhhh

Roger that

Thanks boss!!