On 1/11/2016 6:22 a.m., edu Gpl wrote:
Dear Uwe and lyx team
i can't generate pdf file from math.lyx (in help menu), i got this msg:

! Package l3regex Error: Support package l3kernel too old.

my system: windows 10
lyx: 2.2.1
pdf viewer: acrobat reader

the error  report in attachment file

best regards

As the message says, you need to update the l3kernel LaTeX package. If you are using MiKTeX for your LaTeX distribution then use the MiKTeX package manager or the MiKTeX update service. It would be a good idea to update all the l3 bundles. There are currently 5 of them: l3build, l3ctr2e, l3experimental, l3kernel, l3packages.

Andrew

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