I reinstalled my LyX and it doesn't work...

First of all I see this message:

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What I need to do to solve it? (I look over the internet and nothing was helpful).

At LyX itself I see this:

enter image description here

How can I install the document classes?

Nothing is working :-(

When I say "it doesn't work" - I mean - I can't process documents...

(I'm using Windows 10)

  • Your miktex is not complete. Did you install a miktex bundled with lyx or did you install miktex as standalone texsystem? – Ulrike Fischer Jan 3 '17 at 18:31
  • I do it both - with lyx and without lyx (I install with LyX, and when I saw the problem I uninstall it, and then I install it with LyX....) - But the problem still appear... :-( – heblyx Jan 3 '17 at 18:35
  • Why do people constantly deinstall and reinstall? In any case: start the miktex package manager (admin), synchronize and check if there are missing packages that you can install. Check then also for updates. – Ulrike Fischer Jan 3 '17 at 18:43
  • How do I check if there are missing packages? @UlrikeFischer – heblyx Jan 3 '17 at 18:45
  • @UlrikeFischer - I think I did it, but it doesn't help at all.... – heblyx Jan 3 '17 at 18:54

I have come across a similar problem in the past. It always seemed to happen if one installs LyX before MikTex...but it disappears when I start wih MikTex...also make sure that you have an suitable directory with access rights and stuff... I hope this helps

  • Can you explain more please? So first of all install MikTex and then LyX? Because LyX including MikTex.... Thank you! – heblyx Jan 4 '17 at 8:18
  • 1
    Uninstall both of your current LyX and MikTeX...get fresh and up to date setups of MikTeX and LyX...dont install LyX first...start with MikTeX...this procedure has solved the problem for me in the past – Tau Zand Jan 5 '17 at 9:50

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