Issue with lyx and recent dll

Marco Atzeri
Thu May 28 18:09:49 GMT 2020

On 28.05.2020 19:35, Marco Atzeri wrote:
> 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) 
> (preloaded
>   format=latex 2020.4.22)  28 MAY 2020 19:21
> ....
> ! LaTeX Error: File `qtree.sty' not found.
> the file seems in texlive-collection-humanities

after installing also another package

I was able to have an instant preview

can you check if the test
solve the issue also for you ?
Than I can promote it to stable


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