حل مشکل Waiting for cache lock: Could not get lock در Ubuntu

      Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 2338011 (apt)
    

      sudo killall apt apt-get

    

      sudo reboot
    

      Note: removing the lock file is always wrong, and can end up damaging the
locked area and the entire system. https://wiki.debian.org/Teams/Dpkg/FAQ
    

      sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock*
    

      sudo dpkg --configure -a