LyX ⇒ Unavailable document class

[lyxer]

Hello,

Everything was working fine with Lyx 2.2 on Windows 10 until I did an update for windows (I think).
Now, Lyx is not working properly. I eventually had to uninstall Lyx and Miktex and reinstall them again.
But the problem persists: First, when I compile any file I get a message saying "The directory path to the
document cannot contain spaces". I've never had this error before but then when I went to Documents -> setting
I found that all classes (Articles, books, ... etc.) are unavailable. I tried many things to solve the problem including some of the tips in:
http://latex-community.org/forum/viewto ... ass#p85337
and
http://latex-community.org/forum/viewto ... ass#p84796

with no use. I tried adding paths to Miktex and every time I reconfigure Lyx and restart.

Not sure what to do.

Lyxer

[Stefan Kottwitz]

Perhaps worth a try if it fails with MiKTeX: install a full (!) TeX Live, then reconfigure LyX.
I'm working with TeX Live for many years and I'm very satisfied with it.

Stefan

[lyxer]

Thanks Stefan for the tip.

After two days of trying to install Texlive I finally managed to install it.
Now It's working fine and I can see many of the missing document classes.
It's weird though since under tools -> preferences, the path suggests that Lyx
is using Miktek and not Texlive [C:\Program Files\MiKTeX 2.9\miktex].
I'm not sure which one it is using!

In the future, if I needed to add a document class that is not available (dimmed),
what would be the best way to add it?

Thanks again,

lyxer

[Stefan Kottwitz]

Maybe you need to run "Reconfigure" in LyX.

For the future, I recommend to make a full TeX installation, so you would have all document classes and all packages available, without any headache later because of additionally required installations. Besides that, it should be installing a document class (or bundle) in a "LaTeX way" (TeX Live manager, or manually and running mktexlsr / texhash), then reconfigure LyX.

Stefan

[lyxer]

Thanks I will.