version 1.18 not knitting to PDF due to ! Undefined control sequence. l.942 \file_get:nnN {unicode-math-table.tex} {} \l__um_mathtable_tl · Issue #1733 · rstudio/rmarkdown · GitHub
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version 1.18 not knitting to PDF due to ! Undefined control sequence. l.942 \file_get:nnN {unicode-math-table.tex} {} \l__um_mathtable_tl · Issue #1733 · rstudio/rmarkdown · GitHub
latex - R markdown: How to create a table with images and text which should be knitted as PDF? - Stack Overflow