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Unable to install libssl1.0.0:i386 due to "unmet dependencies"?

rated 0 times [ 9] [ 0] / answers: 1 / hits: 62562 / 1 Year ago, wed, january 4, 2023, 1:29:12

I have read and followed the advice in this question to no avail. I am attempting to install libssl1.0.0:i386 on my 14.04 box (amd64), but when I try to do this via APT, I receive the following error message:

nathan@nathan-desktop:~$ sudo apt-get install libssl1.0.0:i386

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 resolve the situation:



The following packages have unmet dependencies:

 default-jre-headless : Depends: openjdk-7-jre-headless (>= 7~u3-2.1.1) but it is not going to be installed

 openjdk-7-jre : Depends: openjdk-7-jre-headless (= 7u55-2.4.7-1ubuntu1) but it is not going to be installed

                 Recommends: libgnome2-0 but it is not going to be installed

                 Recommends: libgnomevfs2-0 but it is not going to be installed

 openssh-client : Depends: libssl1.0.0 (>= 1.0.1) but it is not going to be installed

 openssh-server : Depends: libssl1.0.0 (>= 1.0.1) but it is not going to be installed

                  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: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

I have all of the latest updates installed. I have run apt-get -f install. I have made sure that all repositories are enabled in Software Sources.

What could be causing this?

Update:

Here are the contents of apt-cache policy libssl1.0.0:

libssl1.0.0:

  Installed: 1.0.1g-1ppa1~trusty1

  Candidate: 1.0.1g-1ppa1~trusty1

  Version table:

 *** 1.0.1g-1ppa1~trusty1 0

        100 /var/lib/dpkg/status

     1.0.1f-1ubuntu2.1 0

        500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages

        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages

     1.0.1f-1ubuntu2 0

        500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

...and apt-cache policy libssl1.0.0:i386:

libssl1.0.0:i386:

  Installed: (none)

  Candidate: 1.0.1f-1ubuntu2.1

  Version table:

     1.0.1f-1ubuntu2.1 0

        500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main i386 Packages

        500 http://security.ubuntu.com/ubuntu/ trusty-security/main i386 Packages

     1.0.1f-1ubuntu2 0

        500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages

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altybol

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3 Years ago

answered 1 Year ago mugustered · Accepted Answer

This kind of error message usually indicates that a package is being installed that conflicts with other installed packages and would have forced removal of other dependent packages. When installing the same package for more than one architecture at the same time (see MultiArch), amd64 and i386 in this case, the versions of the packages to be installed must match exactly.

What likely happened in this case (confirmed by our discussion in the comments) is that libssl1.0.0 was upgraded to a PPA version that is newer than any version available from the Ubuntu repositories. If the PPA was later disabled or unconfigured, the newer packages normally remain installed. Read this question for the difference between disabling and purging a PPA. However, if you've already removed the PPA from your apt configuration, you'll need to manually downgrade the packages that were previously upgraded from the PPA.

To be able to install libssl1.0.0:i386, you must have the same version of libssl1.0.0:amd64 installed from the repository. And because the openssl source package builds multiple related binary packages, you have to ensure that all of its packages are also on the same version. If you don't specify all packages you want to downgrade, apt will prefer to uninstall rather than downgrade. In this case, if you have libssl1.0.0, libssl-dev, and openssl installed from a PPA, you should

sudo apt-get install libssl1.0.0/trusty libssl-dev/trusty openssl/trusty

Answer yes to apt-get's prompt about downgrading the packages. You should now be able to install the libssl1.0.0:i386 package from the repository.