How to fix bug in ubunty 16.04?

Question

ubuntu

Installed ubuntu 16.04. I'm trying to update via synaptic, but it throws an error:

It is also necessary to install mySQL, but there is also an error like:

The server for downloads tried to install different ... the error is the same (((
Tell me what to do with it? How to fix it?

Answer 1

Remove everything from your
/etc/apt/sources.list file
And paste the code

#------------------------------------------------------------------------------#
#                            OFFICIAL UBUNTU REPOS                             #
#------------------------------------------------------------------------------#


###### Ubuntu Main Repos
deb http://ru.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse 
deb-src http://ru.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse 

###### Ubuntu Update Repos
deb http://ru.archive.ubuntu.com/ubuntu/ xenial-security main restricted universe multiverse 
deb http://ru.archive.ubuntu.com/ubuntu/ xenial-updates main restricted universe multiverse 
deb-src http://ru.archive.ubuntu.com/ubuntu/ xenial-security main restricted universe multiverse 
deb-src http://ru.archive.ubuntu.com/ubuntu/ xenial-updates main restricted universe multiverse 

###### Ubuntu Partner Repo
deb http://archive.canonical.com/ubuntu xenial partner
deb-src http://archive.canonical.com/ubuntu xenial partner

Answer 2

Вы после смены сервера загрузки запускали sudo apt-get update?