After running an update and upgrade with apt-get, I noticed I got a new error message while booting up.

Code:
udevd[1491]: udev_rules_init: could not read '/etc/udev/rules.d/025_logitechmouse.rules': No such file or directory
The error no longer appeared once I renamed /etc/udev/rules.d/025_logitechmouse.rules to /etc/udev/rules.d/025_logitechmouse.rules.bak and it seems that this file is a symbolic link to /etc/udev/025_logitechmouse.rules which doesn't exist.

Code:
mv /etc/udev/rules.d/025_logitechmouse.rules /etc/udev/rules.d/025_logitechmouse.rules.bak