Source: libbacktrace Version: 0.1-2 Severity: important There is this line in libbacktrace's debian/control : Section: unknown
That is not a valid Debian section. Ubuntu/Launchpad is not able to import the package: https://launchpad.net/ubuntu/+source/libbacktrace/0.1-2/+latestbuild/amd64 Thank you, Jeremy Bícha
