The error message in the notification was:
Unknown error:'<class'Systemerror'>'E:The package linux-headers-4.4.0-93-generic needs to be reinstalled, but I can't find an archive for it.
**When i tried this command
sudo apt-get install --reinstall linux-headers-4.4.0-93-generic`it shows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: The package linux-headers-4.4.0-93-generic needs to be reinstalled, but I can't find an archive for it.
When i tried
sudo apt-get update
Hit:1 http://ppa.launchpad.net/webupd8team/java/ubuntu xenial InRelease
Hit:2 http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu xenial InRelease
Hit:3 (It shows a link of download.sublimetext.com apt/stable/ InRelease)
Reading package lists... Done
I think sudo apt-get update command works fine here.
