New comment by kartikynwa on void-packages repository

https://github.com/void-linux/void-packages/issues/24710#issuecomment-690143157

Comment:
(Disclaimer: I have never used flameshot.)

This is only a warning. Shouldn't stop it from running. Are you sure there aren't any other messages?

Regardless, this warning is related to dbus, so the solution might depend on your setup. What DE/WM are you using? Do you have a dbus session running?