cannot upgrade due to unmet dependencies

[eekfonky]

After running the update script I get the following;

You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
expect : Depends: tcl8.5 (>= 8.5.0) but it is not installed
libexpat1-dev : Depends: libexpat1 (= 2.1.0-6+deb8u1) but 2.1.0-6+deb8u3 is installed
libjpeg62-turbo-dev : Depends: libjpeg62-turbo (= 1:1.3.1-12) but 1:1.4.1-2 is installed
tightvncserver : Depends: x11-utils but it is not installed
              Recommends: x11-xserver-utils but it is not installed
xfonts-base : Depends: xfonts-utils (>= 1:7.5+2) but it is not installed
E: Unmet dependencies. Try using -f.

So I ran ;
sudo apt-get -f install
I get the following;

pi@retropie:/etc/apt/preferences.d $ sudo apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... failed.
The following packages have unmet dependencies:
 expect : Depends: tcl8.5 (>= 8.5.0) but it is not installed
 libexpat1-dev : Depends: libexpat1 (= 2.1.0-6+deb8u1) but 2.1.0-6+deb8u3 is installed
 libjpeg62-turbo-dev : Depends: libjpeg62-turbo (= 1:1.3.1-12) but 1:1.4.1-2 is installed
 tightvncserver : Depends: x11-utils but it is not installed
              Recommends: x11-xserver-utils but it is not installed
 xfonts-base : Depends: xfonts-utils (>= 1:7.5+2) but it is not installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
E: Unable to correct dependencies

Any ideas?

[BuZz]

@eekfonky have you installed any additional package sources?