Bitcoin Client Software and Version Number: Bitcoin Core 0.14.2
Operating System: OSX El Capitan  ver. 10.11.6
System Hardware Specs: Mac mini (Late 2009) 8 GB 1067 MHz DDR3
Description of Problem: I can’t install Bitcoin Core.
Any Related Addresses: None
Any Related Transaction IDs: None
Screenshot of the problem: http://imgur.com/a/9kDvd
Log Files from the Bitcoin Client: N/A

Thanks a lot for your help!