I have installed
xdotool on my raspbian stretch with desktop and on there, everything works fine.
But I also tried to install
xdotool on raspbian stretch lite and on lite I always encounter the following error:
Error: can't open display: (null) Failed creating new xdo instance
What I have also tried: I flashed raspbian stretch lite on my SD card and installed
sudo apt-get install xdotool and tested it with the command
xdotool key "1". I got the error shown above.
After that I have updated from lite to desktop with
sudo apt install raspberrypi-ui-mods. Then I ran
xdotool key "1" again and now it works fine.
Does someone know if my guess, that
xdotool only works with gui is correct.
Or does someone know how to get
xdotool on rasbian stretch lite without desktop to work?