Comment 15 for bug 695621

I am on the ubuntu based version(18.3 64bit cinnamon, I upgraded from previous install) of mint and this still affects me.
I cannot install libgtk2.0-dev:
>The following packages have unmet dependencies:
> libgtk2.0-dev : Depends: libpango1.0-dev (>= 1.20) but it is not going to be installed
> Depends: libcairo2-dev (>= 1.6.4-6.1) but it is not going to be installed
when I go down the rabbithole, trying libcairo2-dev:
>The following packages have unmet dependencies:
> libcairo2-dev : Depends: libfontconfig1-dev (>= 2.2.95) but it is not going to be installed
> Depends: libfreetype6-dev (>= 2.1.10) but it is not going to be installed
installing libfreetype6-dev:
>The following packages have unmet dependencies:
> libfreetype6-dev : Depends: libfreetype6 (= 2.6.1-0.1ubuntu2.3) but 2.6.3-3ubuntu1.3 is to be >installed
and forcing libfreetype6=2.6.1-0.1ubuntu2.3 would remove almost 50 packages from my system.
Trying this while live booting with 18.3 iso ended the same.