On a new Ubuntu 12.04 system I did sudo apt-get install lyx lyx
I clicked File | New_from_template | aa.lyx and Open and once again got an error dialog. The contents of the dialog are a bit different now. LyX: Document class not available ------------------------------------------------------------ The selected document class article (A&A) requires external files that are not available. The document class can still be used, but the document cannot be compiled until the following prerequisites are installed: aa.cls See section 3.1.2.2 (Class Availability) of the User's Guide for more information. Installing texlive-publishers doesn't help. Also, with reference to comment #16, installing texlive-publishers doesn't eliminate the message in the case of IEEEtran.lyx. ** Changed in: texlive-extra (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/3080 Title: lyx: missing TeX class "aa" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/texlive-extra/+bug/3080/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs