I am trying to install and use the Mix IDE. I have downloaded the disk image from the github page (https://github.com/ethereum/webthree-umbrella/releases/tag/v1.2.3). There appears to be no issue when I download the .dmg or move it into my Applications folder. However, when I try to open Mix (or AlethOne or AlethZero for that matter), I get a message that "Mix quit unexpectedly." I have tried installing a previous version of Mix, but I got the same result.
Are there any dependencies I need to install before hand? Or some other concern I should be aware of? Any help would be greatly appreciated!
I am running OS X 10.10.5 (Yosemite) on a MacBook Pro