Am 01.03.2018 um 17:15 schrieb Scott Kostyshak:
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.
This sounds not good. The problematic is this:
MiKTeX released a new version that changes the whole package handling.
There are now 3 cases:
A: if you have MiKTeX already installed and have not yet updated MiKTeX,
LyX will fail to setup MiKTeX because it uses the new package handling
infrastructure.
B: if you have MiKTeX already installed and run the update wizard of
MiKTeX once, LyX will fail too because two update steps of MikTeX are
necessary: first to update the update wizard and second one to use it to
update MiKTeX's main files.
C: you already run MikTeX's update wizard at least once before using the
LyX installer or you install MiKTeX together with LyX. Then LyX will
perform the second update run for you and LyX is already prepared for
MikTeX's new package handling.
I am still thinking about a clever solution. Maybe I should change the
installer so that it runs the MiKTeX update twice if necessary. I tend
to do this but this requires time for testing I don't have right now.
If you don't like to wait, uninstall MiKTeX and use the bundle installer
of LyX 2.3.0 to install MiKTeX right before LyX.
Any suggesting for a proper solution is welcome.
Scott, I tend to delay the public announce for LyX on Windows for some days.
regards Uwe
