Hi I'm trying to import my tex file to lyx, and it says the following:

screenshot of error

I don't think the source of the problem is the latex file --- for the same error would occur even when I try to import a latex file exported from lyx itself. It wouldn't make sense if lyx cannot import what it exported.

I reinstalled lyx several times, but it did nothing.

I'm running it on MacOS Mojave.


  • Lyx traditionally used TeX2LyX and certainly still does in windows for import and historically tex2lyx can't import Lyx generated TeX thus its most likely a TeX2LyX issue some tips are here wiki.lyx.org/LyX/Troubleshooting – user170109 Feb 4 at 18:26

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