I initially installed it from the Software Manager on my Cinnamon 19.3 machine, but it would not launch so I uninstalled it. I then downloaded the .deb package for Ubuntu from https://www.taskcoach.org/download_for_linux.html and installed it, and the app now launches OK. I'll probably update the * rating after I've had a bit more experience with the app.
To install latest version on terminal with PPA(works on Linux Mint Tessa 19.1 Mate) $ sudo add-apt-repository ppa:taskcoach-developers/ppa $ sudo apt-get update $ sudo apt-get install taskcoach
Excellent program! However; (Version 1.4.3-6) failed to launch on LM 19 Mate 64-bit. (Version 1.4.4) UPDATE: In the DATES tab, Unable to set recurrence of completed task.