On 05/06/2015 03:08 PM, Ygo Kanaki wrote:
Wow, that was quick: THREE responses within five minutes. Can't complain
about that!

I installed the .ppa as instructed on the lyx website, updated Synaptic and
indeed a newer version appeared. Installed the newer version, all ok.

But now when I open my colleagues Lyx file I get three errors instead of
one:

===========
Due to some error in it, the layout file: could not be loaded. A default
textclass with default layouts will be used. LyX will not be able to
produce correct output.

The layout file: scrartcl could not be found. A default textclass with
default layouts will be used. LyX will not be able to produce correct
output.

The module basic has been requested by this document but has not been found
in the list of available modules. If you recently installed it, you
probably need to reconfigure LyX.
===========

Also in Document / Settings I see: Unknown text class scrartcl. Actually
almost all of my document classes are greyed out now.

On my file system I find these two files:

/usr/share/lyx/layouts/scrartcl.layout
/usr/share/doc/texlive-doc/latex/koma-script/scrartcl.html

LyX is complaining that it cannot find the class file associated with this layout, which
is scrartcl.cls. Try running:
    # kpsewhich scrartcl.cls
and see if you get anything. If not, there is some problem with your LaTeX installation
and we'll need to fix that.

If you do see it, then try running Tools> Reconfigure. If that does not work, then you may be running into a python incompatibility that we have sometimes seen on some
systems, and we can sort it out somehow.

The layout file: scrartcl could not be found. A default textclass with
default layouts will be used. LyX will not be able to produce correct
output.

The module basic has been requested by this document but has not been found
in the list of available modules. If you recently installed it, you
probably need to reconfigure LyX.

These are more puzzling. It may be that you have the python problem, but try
reconfiguring and see what happens. It would be best to launch LyX from a terminal, then Reconfigure, and copy and paste the output from that here, if you run into problems.

Richard

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