Finder won't relaunch even after force quit
On an early 2013 MacBook Pro retina, Mavericks 10.9.5, anytime I try to relaunch finder it seems to quit (icons all disappear, no more menu bar for finder, app not running in activity monitor, doesn't show in force quit menu), but will not relaunch, even via terminal command. cmd+tab and I still see the finder icon. It's as if it quits, but the system doesn't think it did, and I can't start it again, and end up needing to reboot my machine every time. I've tried running repair permissions on my disk. Not sure what else to do. Any help resolving this would be greatly appreciated. Thanks!
MacBook Pro with Retina display, OS X Mavericks (10.9.5), null