On Thu, Mar 01, 2018 at 10:26:20AM +0000, Emile Lunardon wrote: > I tried again to install LyX2.3 on my PC running on WINDOWS 8.1. This time > as you have suggested, I have disabled the virus scanner (windows defender) > and installed only for the current user. > The result is identical to the first installation attempt : neither LyX2.3 > nor LyX2.2.3 document compilation works due to problem with Miktex 2.9 > (wrong termination of pdflalex, missing classes, spaces in directory paths). > Then I have performed a package maintenance of Miktex (one new package > downloaded) and I have reconfigured both LyX2.3 and LyX2.2.3. RESULT : both > LyX versions manage to compile documents now. > > CONCLUSION > The installation of LyX2.3 seems to corrupt the Miktex configuration. This > is not due to an interaction with the anti-virus (disabled). Hopefully an > upgrade of Miktex (if there is a new package to install) repairs Miktex 2.9 > and allows LyX to work again.
Thanks for your help in trying to figure out what's going on, Emile. Reading your previous message, you are using the bundle to install, right? Do you have the same problem if you use the installer? I'm not so surprised that the bundle could mess something up if you already have a MikTeX installation. But if just using the non-bundle installer messes something up, that would be a bigger problem, in my opinion, since I don't think it should touch your MikTeX installation (although I don't know for sure, maybe there this a good reason to do so). Scott
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