Tinytex: Shiny App ! LaTeX Error: File `unicode-math.sty' not found

[jvanzalk]

Hi,

I created a shiny app to generate a downloadable pdf report with knitr and rmarkdown.

I am able to generate the report in Rstudio, but when I attempt to do so from the app, I get this error:

2020-04-22T19:40:03.590795+00:00 shinyapps[2124372]: cannot setup TLPDB in /home/shiny/texmf at /usr/bin/tlmgr line 5604.
2020-04-22T19:40:03.593636+00:00 shinyapps[2124372]: Warning in system2("tlmgr", args, ...) :
2020-04-22T19:40:03.593638+00:00 shinyapps[2124372]:   running command ''tlmgr' search --file --global '/unicode-math.sty'' had status 2
2020-04-22T19:40:03.594869+00:00 shinyapps[2124372]: ! LaTeX Error: File `unicode-math.sty' not found.
2020-04-22T19:40:03.594871+00:00 shinyapps[2124372]: 
2020-04-22T19:40:03.594872+00:00 shinyapps[2124372]: ! Emergency stop.
2020-04-22T19:40:03.594873+00:00 shinyapps[2124372]: <read *> 
2020-04-22T19:40:03.594873+00:00 shinyapps[2124372]: 
2020-04-22T19:40:03.597624+00:00 shinyapps[2124372]: Warning: Error in : LaTeX failed to compile /tmp/RtmpDEOSFT/fileca7f657fa3.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See fileca7f657fa3.log for more info.
2020-04-22T19:40:03.602043+00:00 shinyapps[2124372]:   [No stack trace available]
````

You can find my code at github.com/jvanzalk/easy-engagement-reports

Here's the link to my post on stackoverflow: https://stackoverflow.com/questions/61374767/shiny-app-latex-error-file-unicode-math-sty-not-found

And, here is my session info:

R version 3.6.0 (2019-04-26)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.2 LTS, RStudio 1.2.1335

Locale:
LC_CTYPE=C.UTF-8 LC_NUMERIC=C LC_TIME=C.UTF-8 LC_COLLATE=C.UTF-8
LC_MONETARY=C.UTF-8 LC_MESSAGES=C.UTF-8 LC_PAPER=C.UTF-8 LC_NAME=C
LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C

Package version:
assertthat_0.2.1 cli_2.0.2 compiler_3.6.0 crayon_1.3.4 fansi_0.4.0 glue_1.4.0
graphics_3.6.0 grDevices_3.6.0 methods_3.6.0 rlang_0.4.5 rstudioapi_0.11 stats_3.6.0
tools_3.6.0 utils_3.6.0 xfun_0.13
```

Thanks for your help and let me know if there's anything else that I can provide.

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[zoushucai]

I also encountered the same problem. The local Rstudio can run. The above error occurs when deploying the www.shinyapps.io
How can I solve it?

[yihui]

This is more of a ShinyApps.io issue. Please keep an eye on this thread on the support forum: https://community.rstudio.com/t/58425 Thanks!

[jvanzalk]

@yihui thanks for reaching out to someone on the shiny apps team for us. @zoushucai, in the thread that yihui shared, the issue was resolved by creating a template. I just tried it and it worked for me too! Still interested in seeing what Josh's response is.

[jvanzalk]

I got this error at some point too. Try leaving the template in the same
directory as your app.R and then put the below commands in your app.R
script to create a templates directory and move your templates.tex file
there upon deploying your app.

system('mkdir -p ~/.pandoc/templates')
file.copy("template.tex", "~/.pandoc/templates")

On Fri, May 29, 2020 at 9:14 AM urwa [e-mail] wrote:

I tried creating the template in the same directory where app.R and
report.Rmd were residing but I got the error Could not find data file
templates/template.tex. I moved it down to templates folder and still the
same error. What am I missing.

My folder heirarchy looks like this:
[image: image]
https://user-images.githubusercontent.com/5441467/83263486-1d9c1e80-a1d8-11ea-8314-8b6e3595e561.png

Any help would be appreciated.

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[urwa]

Thanks for the above. This is very helpful.

[vishalsharma3003]

Hello All,

I have provided the solution for this problem at stackoverflow link. Please follow: https://stackoverflow.com/questions/61374767/shiny-app-latex-error-file-unicode-math-sty-not-found/63301857#63301857

Regards,
Vishal

[reyar]

rmarkdown 1.15 + latex_engine: xelatex + shinyapps.io does work

rmarkdown >1.15 + latex_engine: xelatex + shinyapps.io does not work (adding a template.tex or the .sty files currently does not work)

Please check also https://github.com/rstudio/shinyapps-package-dependencies/issues/230

[yihui]

rstudio/shinyapps-package-dependencies#230 has been fixed. Hopefully texlive-math-extra will be installed on ShinyApps.io soon. Thanks!

[nicocriscuolo]

Hello everyone. Even though, according to the latest posts, this issue seems to be solved on shinyapps.io, from my shiny app (deployed there) I am still not able to produce a PDF from an .Rmd file embed in the application if the version of the rmarkdown package is higher than 1.15 and the latex engine is xelatex.

When I have this version installed, everything works fine, even though I get the following warning when the application starts:

This version of bslib is designed to work with rmarkdown version 2.7 or higher

If, however, I try to install the latest version of rmarkdown my PDF report is not produced and I get the following LaTeX error:

! LaTeX Error: Missing \begin{document}.
Warning: Error in : LaTeX failed to compile /var/folders/f9/8lfgdj3d5s1dbzsbtscxg9w80000gp/T//RtmpWVpFWz/file10d19ca31140.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See file10d19ca31140.log for more info. [No stack trace available]

Any idea on how to solve this? Thank you for your help!

[cderv]

Hi @nicocriscuolo,

Thanks for reaching out. Please next time open a new issue when yours is not directly related. It is always better to open a new issue, and referenced another that commenting on a closed thread.

I moved your comment into an issue and we can follow up there. thanks !