[chirp_users] OS X chirp issue

Hi chirp users,

I cant get chirp running on OS X. I remember having this issue ages ago and ended up just using linux.

I have followed instructions at http://chirp.danplanet.com/projects/chirp/wiki/MacOS_Tips#Application-Securi... and granted privs to app with $ spctl --add $PWD whilst in the folder, subsequently prompted for user/pass. Chirp doesn't open by double clicking, one bounce in dock then disappears. Trying to open from terminal reveals

LSOpenURLsWithRole() failed with error -10810 for the file /Users/myhomedir/Downloads/chirp-daily-20171104.app

Any help appreciated, as I must be missing something?

PS I am on OS X 10.12.5

Simon