upgrading 12.04 to 14.04 gives many problems

[J.L. Blom]

> First you need to remove the lucid ppa (though this may not actually
> be the cause of the problem since the latest is the first one).  In
> System Settings (under the cog in top right hand corner) select
> Software & Updates and on the Other Software tab make sure there are
> no Lucid sources selected.  Then when you close I think it will ask to
> update the sources data.  Part of the problem may be that some stuff
> from those has been installed and will have to be sorted out.
>
> In at terminal
> sudo apt-get update && sudo apt-get dist-upgrade
> If there are any errors from that then post them here. If it suggests
> apt-get -f then do that.
>
> Finally try
> sudo apt-get install wine
> again and see what happens.
>
> Colin

Colin,
Thanks for your instructions.
I updated the software sources and when it started to reread the 
repositories I got the following errors:
______________________________
W:Failed to fetch 
http://ppa.launchpad.net/mscore-ubuntu/mscore-stable/ubuntu/dists/trusty/main/binary-amd64/Packages 
404  Not Found
, W:Failed to fetch 
http://ppa.launchpad.net/mscore-ubuntu/mscore-stable/ubuntu/dists/trusty/main/binary-i386/Packages 
404  Not Found
, W:Failed to fetch 
http://www.wviewweather.com/apt/precise/dists/trusty/main/binary-amd64/Packages 
404  Not Found
, W:Failed to fetch 
http://www.wviewweather.com/apt/precise/dists/trusty/main/binary-i386/Packages 
404  Not Found
_________________________________
So apparently those are´nt available.
Logically sudo apt-get update gave the same errors.
apt-cache policy wine gave:
joep at laguna:/$ apt-cache policy wine
wine:
   Installed: (none)
   Candidate: 1:1.7.25-0ubuntu1~ppa4
   Version table:
      1:1.7.25-0ubuntu1~ppa4 0
         500 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu/ 
trusty/main amd64 Packages
      1:1.6.2-0ubuntu4 0
         500 http://nl.archive.ubuntu.com/ubuntu/ trusty/universe amd64 
Packages
joep at laguna:/$
But sudo apt-get install wine gave:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  wine : Depends: wine1.6 but it is not going to be installed or
                  wine1.7 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
I have used synaptic where you can repair broken packages but that 
does´nt do much.
So it seems to point to something else.
As far as I have seen no files related to wine exist outside my home 
directory (mainly directory .wine).
Hopefully you can point to a solution.
Joep