[SOLVED] Unable to update system, problem in apt manager

[mohittomar13]

Hello, I've been trying to update my system today the entire day but not able to figure out what is wrong with the system.

mohit@Dell3568:~$ sudo apt install npm
Reading package lists... Done
Building dependency tree 
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
mono-devel : Depends: ca-certificates-mono (= 6.0.0.319-0xamarin1+ubuntu1804b1) but 5.18.1.28-0xamarin5+ubuntu1804b1 is installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

When I run apt --fix-broken install it generates a very big output that I saved in a file, that is attached.

Any help will be really appreciated, I need to install npm for development but I'm not able to do that.

And

mohit@Dell3568:~$ sudo apt update
Hit:1 http://in.archive.ubuntu.com/ubuntu bionic InRelease
Ign:2 http://dl.google.com/linux/earth/deb stable InRelease                                                                          
Hit:3 http://packages.microsoft.com/repos/vscode stable InRelease                                                                    
Hit:4 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease                                                                   
Hit:5 http://in.archive.ubuntu.com/ubuntu bionic-backports InRelease                                                                 
Hit:6 http://security.ubuntu.com/ubuntu bionic-security InRelease                                                                    
Hit:7 https://packages.microsoft.com/ubuntu/18.04/prod bionic InRelease                                              
Hit:8 http://dl.google.com/linux/earth/deb stable Release                                      
Hit:9 https://download.mono-project.com/repo/ubuntu vs-bionic InRelease
Reading package lists... Done                 
Building dependency tree       
Reading state information... Done
32 packages can be upgraded. Run 'apt list --upgradable' to see them.
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://dl.google.com/linux/earth/deb stable InRelease' doesn't support architecture 'i386'

Thanks in advance

[claydoh]

After running apt update, did you then run apt full-upgrade to update your system, then try installing npm again?

The package database could have been out of date if you didn't run apt update before trying to install packages.

it also might be worth trying different apt repos, if the ones for your country are having temporary issues search for 'software sources' in your Kmenu, or Krunner, and try switching from the India servers the main servers, and see if there is a difference, if the above does not work.


Your attachment didn't get uploaded or attached to your post. Probably better to use a pastebin like https://paste.ubuntu.com, and link to that. If you did not run apt update beforehand, the output of the 'fix-missing' option will likely be very messy.


The output you show for your apt update output is correct and normal, no issues there.

[claydoh]

Actually, I noticed this:

mono-devel : Depends: ca-certificates-mono (= 6.0.0.319-0xamarin1+ubuntu1804b1) but 5.18.1.28-0xamarin5+ubuntu1804b1 is installed

What external sources have you added? This is definitely not an Ubuntu package, and either is an issue with that third party repo, or, as I mentioned above, you did not run apt update before trying to install npm., and your package database is out of sync with the repos.

[mohittomar13]

Wouldn't running the full upgrade, upgrade my version of LTS 18.04 to 19.xx. I don't want to do that. And I ran sudo apt update and sudo apt upgrade. As far mono is concerned my friend installed that on my machine and he is not in the country.

[acheron]

Wouldn't running the full upgrade, upgrade my version of LTS 18.04 to 19.xx.

No, it would not. It just does as bit more (if required) to upgrade packages on your current system - e.g. installing new packages where dependencies require it.

[can-do-noir]

I have the same problem, the sources used were:

deb https://download.mono-project.com/repo/ubuntu vs-bionic main

https://www.mono-project.com/download/stable/ for ubuntu 18.04

[can-do-noir]

Probably more relevant over here: https://github.com/mono/mono/issues/16130

[mohittomar13]

No, it would not. It just does as bit more (if required) to upgrade packages on your current system - e.g. installing new packages where dependencies require it.

Yes, sorry I confused dist-upgrade with full-upgrade. I will do a full upgrade and will post the results soon. Right now internet is not fast enough to perform an update. Thanks :-)

[Snowhog]

Yes, sorry I confused dist-upgrade with full-upgrade.

dist-upgrade (sudo apt-get dist-upgrade) and full-upgrade (sudo apt full-upgrade) do the same thing. Neither changes the version of the OS you are using.

[mohittomar13]

dist-upgrade (sudo apt-get dist-upgrade) and full-upgrade (sudo apt full-upgrade) do the same thing. Neither changes the version of the OS you are using.

Ohh.. I thought dist-upgrade, upgrades the distribution to a new version and I will loose LTS support.

Well anyways, I ran the commands and still it is giving the same error. Should I uninstall and then reinstall mono?? By the way following are the results of the commands.

mohit@Dell3568:~$ sudo apt update
Hit:1 http://in.archive.ubuntu.com/ubuntu bionic InRelease
Hit:2 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease                                                                   i
Hit:3 http://packages.microsoft.com/repos/vscode stable InRelease                                                                    
Ign:4 http://dl.google.com/linux/earth/deb stable InRelease                                                                          
Hit:5 http://in.archive.ubuntu.com/ubuntu bionic-backports InRelease                                                                 
Hit:6 http://security.ubuntu.com/ubuntu bionic-security InRelease                                                                    
Hit:7 http://dl.google.com/linux/earth/deb stable Release                                                                            
Hit:8 https://download.mono-project.com/repo/ubuntu vs-bionic InRelease                        
Hit:9 https://packages.microsoft.com/ubuntu/18.04/prod bionic InRelease
Reading package lists... Done                    
Building dependency tree       
Reading state information... Done
38 packages can be upgraded. Run 'apt list --upgradable' to see them.
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://dl.google.com/linux/earth/deb stable InRelease' doesn't support architecture 'i386'

mohit@Dell3568:~$ sudo apt full-upgrade 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
mono-devel : Depends: libmono-2.0-dev (>= 6.0.0.319-0xamarin2+ubuntu1804b1) but 6.0.0.319-0xamarin1+ubuntu1804b1 is installed
           Depends: ca-certificates-mono (= 6.0.0.319-0xamarin2+ubuntu1804b1) but 5.18.1.28-0xamarin5+ubuntu1804b1 is installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
mohit@Dell3568:~$

THought I was not able to capture the entire output I have the following link for whatever error I got from apt-get --fix-broken install

https://paste.ubuntu.com/p/znKgy7GkqH/

[claydoh]

Uninstalling and reinstalling won't help as the problem likely is with the mono repository you added. Their packaging is what is causing the conflicts. It is looking for something with a different version than what is actually available. You'll have to contact them.

Sent from my LG-H931 using Tapatalk

[claydoh]

However. It might be worth trying

sudo apt-get -f install

And then

sudo dpkg --configure -a

The output of the fix-missing command looks wrong for some reason, it looks more like a debugging output or a crash report.

Unless the mono repo is either fixed, or you uninstall all the mono components you have installed and/or remove the repo, this error won't go away.

Sent from my LG-H931 using Tapatalk

[mohittomar13]

Thanks for your help claydoh. But, nothing seems to work. How can I completely remove all the components of mono from my system, as you suggested? If needed again I will install it, right now I don't need it. I'm working mostly on web development using other technologies not .Net.

I ran sudo apt-get -f install and dpkg --configure -a but these are producing output similar to sudo apt-get --fix-broken install.

I tried sudo apt-get purge monodevelop but it is giving me the same error "Some packages have unmet dependencies" and asks to run sudo apt-get --fix-broken install.

Thanks again.

[Snowhog]

You may have to run both commands several times, as it can take several 'passes' of each before everything is 'fixed'. This isn't always the case, but each running of both commands 'can' fix one or more of the issues, allowing the subsequent instances to fix more.

[claydoh]

Actually, can-do-noir gave us info that leads to a fix

The link
https://github.com/mono/mono/issues/16130
also has a link to another report that has a fix
https://github.com/mono/monodevelop/issues/8356

goi8ng back to the bug reports for new info is always a good idea