R Markdown doesn't create pdf file ("Latex failed to compile ...")

[cderv]

@Gilian157

! pdflatex: major issue: So far, you have not checked for MiKTeX updates.

It seems MikTeX is asking you to update. Did you already look into that ?

You can also use another distribution like TinyTeX, which is tested specifically with rmarkdown

You can install it and manage it easily using the tinytex R

See

1.2 Install LaTeX (TinyTeX) for PDF reports | R Markdown Cookbook