Ran into an interesting issue and didn’t really find a good solution to the issue I ran into. Since v9.0 is pretty new I assume others might run into the same issue and go poking for a solution. So this is the error:
$>sudo apt install kicad
Reading package lists... Done
Building dependency tree... Done
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:
libocct-data-exchange-7.6 : Breaks: libocct-data-exchange-7.5 but 7.5.1+dfsg1-2ubuntu1 is to be installed
libocct-foundation-7.6 : Breaks: libocct-foundation-7.5 but 7.5.1+dfsg1-2ubuntu1 is to be installed
libocct-modeling-algorithms-7.6 : Breaks: libocct-modeling-algorithms-7.5 but 7.5.1+dfsg1-2ubuntu1 is to be installed
libocct-modeling-data-7.6 : Breaks: libocct-modeling-data-7.5 but 7.5.1+dfsg1-2ubuntu1 is to be installed
libocct-ocaf-7.6 : Breaks: libocct-ocaf-7.5 but 7.5.1+dfsg1-2ubuntu1 is to be installed
libocct-visualization-7.6 : Breaks: libocct-visualization-7.5 but 7.5.1+dfsg1-2ubuntu1 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
The solution is to disable the ppa since 8.0 has this dependency mismatch.
It should install now.