When you try to install wine on ubuntu/debian and you get the following error:
The following packages have unmet dependencies: wine : Depends: wine1.6 but it is not going to be installed E: Unable to correct problems, you have held broken packages.
Solution: add architecture i386
To solve this error we first enable i386 arch and then we install the wine package.
dpkg --add-architecture i386 sudo apt update sudo apt install wine
Solution 2: Add the wine ppa
As an alternative you can add the ubunti-wine ppa and then install a newer wine:
dpkg --add-architecture i386 add-apt-repository ppa:ubuntu-wine/ppa apt-get update apt-get install wine1.7
As you can see the i386 arch need to be enabled also.