sudo apt install -f This second command fixes any broken dependencies left behind.
If nothing else is open, force-remove the stale lock file (only if you're sure no package manager is running):
sudo dpkg --configure -a It tells dpkg to go back and finish configuring any partially installed packages. sudo apt install -f This second command fixes
Once it returns to the command prompt, run:
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. Don’t panic. Your system isn't broken, and you don't need to reinstall Linux. This error is simply Linux’s way of saying, "Hey, the last installation didn't finish cleanly. Please let me tidy up before we continue." Don’t panic
Have you ever tried to install something on Ubuntu or Debian using apt install , only to be greeted by this wall of red text?
You should now be able to install software normally. What If That Doesn't Work? In rare cases, you might see a different error after running dpkg --configure -a . Here are two common follow-up problems and their fixes. Case 1: "Unable to lock the administration directory" If you see: Please let me tidy up before we continue
After running it, you'll see it process the interrupted package(s). Wait for it to finish—it may take 30 seconds to a few minutes depending on what was interrupted.