"LaTeX3 Error: Command '\textsi' not yet defined!"

Jürgen Spitzmüller spitz at lyx.org
Mon Feb 17 06:29:23 UTC 2020

Am Samstag, den 15.02.2020, 22:52 +0000 schrieb David Pesetsky:
> I was using Lyx for Mac rather extensively to write a long-ish
> manuscript about a year ago, but have been away from it for a while.
> In the interval, a problem has arisen, though nothing has changed in
> my setup besides updating Lyx and Latex via TexLive.  I install the
> embrac package, which ensures non-italic brackets in otherwise
> italicized environments.  This used to work without a problem, but
> now generates the error message:
> LaTeX3 Error: Command '\textsi' not yet defined!

That's a problem in the embrac package following a recent update of the
fontspec package. See:


The embrac maintainer should have been made aware of the problem, but
I'd say it cannot harm if you file a bug report at

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: This is a digitally signed message part
URL: <http://lists.lyx.org/pipermail/lyx-users/attachments/20200217/6c495519/attachment.asc>

More information about the lyx-users mailing list