Hi, I am trying to migrate my Koha installation from an Ubuntu 16.04 LTS "Xenial" [virtual] machine to a new machine, running Ubuntu 18.04 LTS "Bionic Beaver". Immediately after issuing the installation command: sudo apt-get install koha-common I get the error: 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: koha-common : Depends: libmarc-charset-perl but it is not installable Depends: libmarc-xml-perl but it is not installable Indeed, these two dependencies are not [yet] implemented for Ubuntu 18.04, as of https://packages.ubuntu.com . Any suggestion? Many thanks. Giuseppe.