Also, I just tried restarting gnome settings daemon and it gave the same error, but did not change anything on reboot. I tried running it with sudo, and my desktop theme changed instantly, so maybe try sudo instead of rebooting if rebooting doesn't work for you.
Also, I just tried restarting gnome settings daemon and it gave the same error, but did not change anything on reboot. I tried running it with sudo, and my desktop theme changed instantly, so maybe try sudo instead of rebooting if rebooting doesn't work for you.