After compiling, I got the following messages:
Error message
Error: LaTeX failed to compile hw_ch_1_Hussein_Jafar.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips.
Warning message
In addition: Warning message:
In system2(..., stdout = if (use_file_stdout()) f1 else FALSE, stderr = f2) :
'"pdflatex"' not found
Execution halted
No LaTeX installation detected (LaTeX is required to create PDF output). You should install a LaTeX distribution for your platform: https://www.latex-project.org/get/
If you are not sure, you may install TinyTeX in R: tinytex::install_tinytex()
Otherwise consider MiKTeX on Windows - http://miktex.org
MacTeX on macOS - https://tug.org/mactex/
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Linux: Use system package manager