Hello, I just instealled Ubuntu Mate for my Raspberry Pi and tried to execute an application I downloaded called Collidoscope. The terminal keeps saying"command not found". I have run this application before on the NOOBS distro for rp3, I don’t understand why it isn’t working on this distro. I am the administrator and I am in the right directory and the application has been changed to allow for permission to run.
Any ideas or suggestions? Is this some kind of new safety feature that prevents non-package installed software from running?