Issue
I want to run ASP.NET MVC application in Debian 10 with Apache. I have installed latest mono from mono Debian 10 repository using apt.
Trying to install mod_modo using
apt install libapache2-mod-mono
throws error
> 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 to resolve the situation:
>
> The following packages have unmet dependencies: libapache2-mod-mono :
> Depends: mono-apache-server (< 4.6) but 4.7.1-0xamarin2+debian10b1 is
> to be installed or
> mono-apache-server4 (< 4.6) but 4.7.1-0xamarin2+debian10b1 is to be installed or
> mono-apache-server2 (< 4.6) but it is not installable
> E: Unable to correct problems, you have held broken
> packages.
How to install mod_mono on Debian 10 ?
/etc/apache2/mods-available contans mod_mono. Maybe it is sufficient to enable it in apache to get it work ?
/etc/sources.list contains:
deb http://ftp.debian.org/debian buster main contrib non-free
deb http://ftp.debian.org/debian buster-updates main contrib non-free
deb http://security.debian.org buster/updates main contrib non-free
/etc/apt/sources.list.d contains two files:
mono-official-stable-list:
deb https://download.mono-project.com/repo/debian stable-buster main
and pgdg.list:
deb http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main
#deb-src http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main
Update
I tried commands from GAD3R answer.
apt install libapache2-mod-mono
still fails. Error message is a bit different:
Hit:1 http://security.debian.org buster/updates InRelease
Hit:2 http://ftp.debian.org/debian buster InRelease
Hit:3 http://ftp.debian.org/debian buster-updates InRelease
Hit:4 http://apt.postgresql.org/pub/repos/apt buster-pgdg InRelease
Reading package lists... Done
Building dependency tree
Reading state information... Done
7 packages can be upgraded. Run 'apt list --upgradable' to see them.
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 to resolve the situation:
The following packages have unmet dependencies:
libapache2-mod-mono : Depends: mono-apache-server (< 4.4) but 4.7.1-0xamarin2+debian10b1 is to be installed or
mono-apache-server4 (< 4.4) but 4.7.1-0xamarin2+debian10b1 is to be installed
E: Unable to correct problems, you have held broken packages.
Solution
Install libapache2-mod-mono from the official debian repository.
sudo rm /etc/apt/sources.list.d/mono-official-stable.list
Then run :
sudo apt update
sudo apt purge mono.
sudo apt autoremove
sudo apt install libapache2-mod-mono
please file a bug report to mono dev team on github.
Answered By - GAD3R