The following packages have unmet dependencies:ĭepends: libqgis-analysis3.4.2 but it is not going to be installedĭepends: libqgis-app3.4.2 but it is not going to be installedĭepends: python-qgis (= 1:3.4.2+28bionic) but it is not going to be installed The following information may help to resolve the situation: Requested an impossible situation or if you are using the unstableĭistribution that some required packages have not yet been created Here is my list without comments after the purge I typically am using the command line but am not preferential.Īs for my sources list, I had both the QGIS ubuntu ppa and the ubuntugis ppa, purged both, clean, rinse repeated and added back.same error. When you say you delete everything, can you point to a list of what everything is that needs to be purged? Is Synaptic the same as the GUI software manager that comes with Ubuntu, or is that a unique package manager I should use instead.
Like apt or apt-get which I use more often. Is Synaptic better or different than the default Ubuntu Software? I thought both were GUI and about the same. That means loosing my plugins, I then have to go though the hassle of reinstalling my plugins again. If the minimum QGIS does not run and there's no conflicts, I delete the QGIS home directory as a last resort.
Sometimes Saga or Grass use their own repositories and may conflict (that was a few years ago, don't think that happens now as there's a repository that provides QGIS, Grass and Saga). If it's OK, I then add Saga GIS, Grass and other components via Synaptic one by one, checking for unmet dependancies and that everything runs OK. If there is an unmet dependency, it tends to be easier to correct if you have installed just the minimum QGIS. If there isn't a conflict with my QGIS repository and it's using the right repository, I then reinstall the minimum QGIS installation via Synaptic and see if there's no unmet dependancies and it runs OK. In situations like this I usually uninstall everything, and I mean everything associated with QGIS via Synaptic, and then look at my repositories to see if there's a conflict (I used to try uninstalling just the conflicting library, but uninstalling everything is often quicker). An unmet dependancy usually means two different repositories, supplying mutually conflicting versions of the same program or library was installed, usually a clash between old and new versions, an old version not getting uninstalled before an upgrade.
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