The ?- report. command sends the derivations to the
browser. In Ubuntu Linux under WSL2 (Window 11), the system browser is
not invoked, an error message pops up instead.
According to Kan Rangsan, this can be solved by installing the following at the command line.
sudo add-apt-repository ppa:wslutilities/wslu sudo apt update sudo apt install wslu
See link
Below, you can see the browser working fine after the fix.
