Issue with lyx and recent dll

Marco Atzeri
Thu May 28 17:35:12 GMT 2020

On 28.05.2020 12:50, Enrico Forestieri wrote:
> Hi,
> when activating instant preview in Tools>Preferences>Display, one can
> preview a latex snippet in the lyx work area by inserting it in a
> preview inset (Insert>Preview).
> However, since version 3.1.0 it does not work anymore, in the sense
> that the preview is not generated. As this feature is working correctly
> on all other platforms, investigating a bit evidenced that downgrading
> the dll to version 3.0.7 solves the issue.
> I am attaching an example document demonstrating the issue. The latex
> source used for instant preview is generated in the lyx temporary
> directory (/tmp/lyx_tmpdir.XXXXXXXXXXXX/) but latex is never run on it
> to generate the images. As lyx launches latex in a forked process, this
> has to be a fork problem, but no error is issued. The forked process
> seems to never run, simply.

Testing on, it seems that the file is processed:

from lyxpreviewE14071.log

This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020/Cygwin) 
  format=latex 2020.4.22)  28 MAY 2020 19:21

! LaTeX Error: File `qtree.sty' not found.

the file seems in texlive-collection-humanities

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