How to fix error in ubunty 16.04?

Installed ubuntu 16.04. Trying to update via synaptic, but it throws an error:
a390d47c203f4867a3c807adc30cfacc.png

You also need to put in mySQL but there is also type error:

14d1e945db1a497a939f9002f3566f11.png

Server for downloads tried to put a different...error is the same (((

Tell me what to do ? How to fix ?
July 9th 19 at 10:51
2 answers
July 9th 19 at 10:53
Solution
Remove everything from your file
/etc/apt/sources.list
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
July 9th 19 at 10:55
You then change the download server ran sudo apt-get update?

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