Please note that libsdl2-dev has an unversioned dependency on libpulse- dev.
There seems to be a local version mismatch between the libpulse packages: “libpulse-dev : Depends: libpulse0 (= 1:11.1-1ubuntu7.4) but 1:11.1-1ubuntu7.5 is installed”. Did you have the bionic-proposed repository enabled at some point but don't have it anymore? I think if you enabled the proposed updates then you might be able to install libpulse-dev again. ** Package changed: libsdl2 (Ubuntu) => pulseaudio (Ubuntu) ** Changed in: pulseaudio (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1863186 Title: package sdl2-dev depends on outdated version of libpulse-dev Status in pulseaudio package in Ubuntu: Incomplete Bug description: $ sudo apt install libsdl2-dev Reading package lists...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: libsdl2-dev : Depends: libpulse-dev but it is not going to be installed E: Unable to correct problems, you have held broken packages. $ sudo aptitude install libsdl2-dev The following NEW packages will be installed: .... The following packages have unmet dependencies: libpulse-dev : Depends: libpulse0 (= 1:11.1-1ubuntu7.4) but 1:11.1-1ubuntu7.5 is installed Depends: libpulse-mainloop-glib0 (= 1:11.1-1ubuntu7.4) but 1:11.1-1ubuntu7.5 is installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1863186/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp