Starting with Xojo 2018r1, your Xojo apps require the libunwind8 library to be installed on your Raspberry Pi. You can easily do that from Terminal on the Pi with this command:
sudo apt-get install libunwind8
The Raspberry Pi OS (Raspbian) does not automatically update itself. Since it is always a good idea to keep your Pi up to date, you can do it easily from Terminal using these commands:
sudo apt-get update sudo apt-get upgrade
To learn more about Raspberry Pi and Xojo:
And don’t forget, you can get a build Console apps for Raspberry Pi with your free Xojo license.