thomas@thomas-boontoo:~$ sudo apt update
Hit:1 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Hit:2 http://security.ubuntu.com/ubuntu xenial-security InRelease   
Hit:3 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease             
Hit:4 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease           
Ign:5 http://linux.dropbox.com/ubuntu wily InRelease                
Hit:6 http://ppa.launchpad.net/freecad-maintainers/freecad-stable/ubuntu xenial InRelease
Get:7 http://linux.dropbox.com/ubuntu wily Release [6,596 B]                 
Hit:8 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu xenial InRelease    
Hit:10 http://ppa.launchpad.net/js-reynaud/kicad-4/ubuntu xenial InRelease    
Hit:11 http://ppa.launchpad.net/juliank/netatalk3/ubuntu xenial InRelease      
Hit:12 http://ppa.launchpad.net/openjdk-r/ppa/ubuntu xenial InRelease          
Hit:13 http://ppa.launchpad.net/thomas.tsai/ubuntu-tuxboot/ubuntu xenial InRelease
Hit:14 http://ppa.launchpad.net/x2go/stable/ubuntu xenial InRelease            
Fetched 6,596 B in 1s (3,475 B/s)                  
Reading package lists... Done
Building dependency tree       
Reading state information... Done
30 packages can be upgraded. Run 'apt list --upgradable' to see them.
thomas@thomas-boontoo:~$ sudo apt upgrade
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. 
thomas@thomas-boontoo:~$ sudo dpkg --configure -a
dpkg: error: parsing file '/var/lib/dpkg/updates/0001' near line 0:
 newline in field name '#padding'
thomas@thomas-boontoo:~$