This is due to a broken config file. See https://bugs.launchpad.net/ubuntu/+source/context/+bug/622253 and http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=609600.
** Bug watch added: Debian Bug tracker #609600 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=609600 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776692 Title: mptopdf fails to execute 'mtx-base.lua' (bug in luatex?) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
