The problem is that GnuCash 2.6.x was built as 32-bit to support running on MacOSX 10.5 and 10.6. Apple removed 32-bit support from Catalina. You need to upgrade GnuCash to a 3.x release.
Regards, John Ralls > On May 11, 2020, at 9:30 AM, Sean Perlmutter <s...@seanperlmutter.com> wrote: > > Thanks so much for your reply, John. > > It's version 2.6.18. After the OS update, the app simply won't launch. I > don't know how to run it from the Terminal. > > -Sean > >> On May 11, 2020, at 9:12 AM, John Ralls <jra...@ceridwen.us> wrote: >> >> >> >>> On May 11, 2020, at 9:01 AM, Sean Perlmutter <s...@seanperlmutter.com> >>> wrote: >>> >>> Hi Gnu brain trust, >>> >>> Forgive me: noob here. Just updated to MacOS Catalina and now I'm unable to >>> open the application. How to resolve? >>> >>> Any help is appreciated. Thanks in advance. >> >> What version of GnuCash? What happens? Have you tried running it from >> Terminal? >> >> Regards, >> John Ralls >> > _______________________________________________ gnucash-user mailing list gnucash-user@gnucash.org To update your subscription preferences or to unsubscribe: https://lists.gnucash.org/mailman/listinfo/gnucash-user If you are using Nabble or Gmane, please see https://wiki.gnucash.org/wiki/Mailing_Lists for more information. ----- Please remember to CC this list on all your replies. You can do this by using Reply-To-List or Reply-All.