Hello, I've tried your steps...and it works. However, I noticed what is the problem, but can't explain why... The difference is that I use fish-shell, so can you try 1. to install fish shell: sudo pacman -S fish 2. change default shell to fish $ chsh (set to /usr/bin/fish) 3. define following variables in ~/.config/fish/config.fish set ISE_EIFFEL /home/eiffel/opt/Eiffel_19.05 set ISE_PLATFORM linux-x86-64 set -g -x PATH $PATH $ISE_EIFFEL/studio/spec/$ISE_PLATFORM/bin 4. try to execute $ estudio Here it fails, while when running under bash it does work, so I'm really curious what kind of bash-ism is there in EiffelStudio?