I recently upgraded from 12.04 to 14.04, and now I'm in the process of fixing some broken applications :(
My latest problem is with pdflatex (used through Lyx), after upgrading I don't seem to be able to export to PDF, the process fails with the error:
LaTeX Error: File `cp1255.def' not found.
LaTeX Error: File `rlbabel.def' not found.
LaTeX Error: File `he8enc.def' not found.
I should probably note that the problem arises only when I try to compile documents containing Hebrew which I sometimes use in my documents.
This is really a big deal for me, so help would be much appreciated.