Missing Dependencies Prevent Install

[webmanoffesto]

I've been getting frustrating dependency errors. How do I resolve these?
When I try to install the missing packages they do not install. I seem to be going in circles.



$ sudo apt-get -f install picard
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
fahcontrol : Depends: python-support (>= 0.90.0) but it is not installable
Depends: python-gnome2 but it is not going to be installed
picard : Depends: python-mutagen (>= 1.20) but it is not going to be installed
Depends: python-libdiscid but it is not going to be installed
Depends: libchromaprint-tools but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

$ sudo apt-get -f install python-support
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package python-support is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source


E: Package 'python-support' has no installation candidate

$ sudo apt-get -f install python-gnome2
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
fahcontrol : Depends: python-support (>= 0.90.0) but it is not installable
python-gnome2 : Depends: python-gconf (= 2.28.1+dfsg-1.1) but it is not going to be installed
Depends: python-pyorbit (>= 2.0.1-4) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

[dino99]

which ubuntu version are you using ? Note that python2 is on the removal road, at least for focal and up.

https://launchpad.net/ubuntu/+source/picard

Be sure your sources.list match the flavour used.

[ActionParsnip]

What is the output of:



lsb_release -a; uname -a; apt-cache policy picard


Thanks

[mc4man]

picard has been python3 since after 18.04 so likely on 18.04 or earlier, probably some repos disabled, check Software & Updates.

fahcontrol is also an issue, not in Ubuntu repo's , was obviously an attempted local install.

Edit: fahcontrol is python only (2.7) but again in this case likely missing Ubuntu repo's. Seeing as though it was probably installed with dpkg you could remove it, fix repos & install . (- if on 18.04 use apt to install.