On Sun, Aug 3, 2014 at 3:09 PM, Guillermo E. Narvaez <narvaezg@gmail.com> wrote:

Having problems launching on MBP 13" late 2011, 8GB ram.

Also Mac Mini, mid-2012, 16 GB ram.

(Yeah, yeah, before you harp on the fact that I am using a Mac or that it is beta, please only consider productive comments – let's keep it mature and respectful).
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Guillermo E. Narvaez, Ph.D.
AF6BR

I don't have a Mac, but looking at the "Install notes" on the CHIRP Download page, it sounds like you have not installed the KK7DS Python runtime. Install Note #3 says CHIRP won't execute without it.

Jim KC9HI