Problem with ppa maybe?
1538
How to erase duplicate repository?
152823
PPAs will not install "sudo: add-apt-repository: command not found"
400
Can you help me with my software licensing issue?
139120
Intel Graphis card not updating. Problem with ppa?
20522
PPTP VPN missing in "connection type dialogue" in Ubuntu 16.04
26971
Problem with package lineno
107149
Is the current version of Ubuntu usable on a PPC mac?
77827
How do I file a bug on a PPA upstream with the maintainers using Launchpad?
13054
Failing package manager?
73604
Problems with amsmath
36772
Is it possible to only allow specific packages updates from a PPA
127389
Problem with Vivaldi ppa
73560
Item cannot be installed or removed until the package catalogue is repaired
150182
Ubuntu 14.04: problems upgrading php to 5.6 using ppa:ondrej
74185
How can I add a PPA from a previous release?
155381
Can anyone help me with a solution?
117719
Problem with certificates