I'm trying to use CC in a Forge dev environment (1.7.10) for a mod that works with CC, but when I click on any computer, it says it failed to mount the ROM directory. I've been messing and debugging for days but can't seem to figure it out…

I used Bearded Octo Nemesis instead of CodeChickenCore since CCC was just crashing; looked like it was failing to deobfuscate CC. Shouldn't be a problem; BON seems to work just fine.

Any ideas?

EDIT: I tried it with all versions of CC compatible with MC 1.7.10; none work.