Oh, I didn't realize that you could embed libraries in lua files, I thought each library needed its own directory. The whole "embedded libs" thing has me sort of confused though...isn't the point of a lib that it's shared among multiple addons?
Anyways, I've installed PerfectTargets with and without externals now, and removed it and re-downloaded it from scratch, and I still get this error.
I did my standard WoWAceUpdater a couple days ago and now I'm getting the following error on login:
Interface\AddOns\PerfectTargets\PerfectTargets.lua:6 Cannot find a library with name 'MetrognomeNano-Beta0'
Sure enough, I find no reference to a lib by that name anywhere, and can't find any reference to it here on WowAce or any other site. Anyone know what changed, and what might be causing this? I always found PerfectTargets nice and useful, I'd hate to lose it.