Cannot get mono to work properly on Linux Mint

mono/wine not working in Ubuntu/Linux Mint/Debian:

The assembly mscorlib.dll was not found or could not be loaded. It should have been installed in the `/usr/lib/mono/2.0/mscorlib.dll' directory.

solution:

sudo apt-get install mono-complete

Problems:

mono does not work well for even simple things like a Winrar self extracting .exe file:

File does not contain a valid CIL image.

Try wine (you can never get it to work or install)

sudo apt-get install wine1.6-amd64
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 resolve the situation:

The following packages have unmet dependencies:
wine1.6-amd64 : Depends: libopencl-1.1-1
                 Depends: wine1.6:any (= 1:1.6.2-0ubuntu4)
E: Unable to correct problems, you have held broken packages.
user@box:~$

sudo apt-add-repository ppa:ubuntu-wine/ppa
sudo apt-get update

sudo apt-get install wine1.8-amd64
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 resolve the situation:

The following packages have unmet dependencies:
wine1.8-amd64 : Depends: libopencl-1.1-1
                 Depends: wine1.8:any (= 1:1.8.0-0ubuntu1)
E: Unable to correct problems, you have held broken packages.

nvidia-libopencl1-346-updates