The following packages have unmet dependencies:

Ankit Kumar

11/3/23, 9:13 PM

I tried doing sudo apt install openssh-server and getting the following error, any help would be much appreciated. I am using Ubuntu 20.04 Focal

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:
 openssh-server : Depends: openssh-client (= 1:7.2p2-4ubuntu2.10)
                  Depends: openssh-sftp-server but it is not going to be installed
                  Recommends: ssh-import-id but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

654

0 + 6

package-management

apt

20.04

guiverc

11/3/23, 9:34 PM

Does this answer your question? [Unable to correct problems, you have held broken packages](https://askubuntu.com/questions/223237/unable-to-correct-problems-you-have-held-broken-packages)

guiverc

11/3/23, 9:37 PM

Check your sources & release you're running; your paste includes a non-focal package requirement (https://packages.ubuntu.com/search?keywords=openssh-client&searchon=names&suite=all&section=all) so I'd start with reading the output of `sudo apt update`) & re-consider whatever source you added last (*or before the problems started occurring if you're actually using focal*)

user535733

11/3/23, 10:05 PM

`openssh-client` version `1:7.2p2-4ubuntu2.10` is in Ubuntu 16.04 (not 18.04, not 20.04). This suggests that your sequential release-upgrades to 20.04 suffered terrible errors that you have not disclosed, or that you used some nonstandard method of release-upgrade that encountered problems yet undisclosed, or that you added wrong-version Ubuntu sources to your system. Edit your question to disclose some of that context. If you have no idea how your system came to be so damaged, then backup your data and reinstall Ubuntu.

Ankit Kumar

11/4/23, 3:38 AM

@user535733 I am new to development, it would be great if you can guide me how can I start trouble shooting this problem, so that I can learn also.

user535733

11/4/23, 12:41 PM

You already started troubleshooting by reading the output. Good! Next, the `devscripts` package includes a tool call `rmadison` -- that's one easy way to determine which version of a package is in which release of Ubuntu (there's also packages.ubuntu.com). Next, we ask ourselves, "*why* is a 16.04 package installed on a 20.04 system?" The fix is to uninstall all 16.04 packages and install 20.04 packages instead. However, apt will *automatically* do that anyway. So something else is wrong. At that point, we have run out of data to work with.

Ankit Kumar

11/4/23, 2:18 PM

I guess I found out where I did the mistake, when I am doing `sudo apt update` I am getting the following hints, which shows that this is the wrong package that's creating all the problem, now working with realsense developers to resolve this issue. `Hit:1 http://security.ubuntu.com/ubuntu xenial-security InRelease Hit:2 http://archive.ubuntu.com/ubuntu xenial InRelease Hit:3 http://packages.ros.org/ros/ubuntu focal InRelease `

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: The following packages have unmet dependencies:

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.