Error: can't specify None for path argument
I googled about this error. The path of
latexindent.pl became the suspect. Typing
which latexindent on the terminal, I saw
$ which latexindent /Library/TeX/texbin/latexindent
echo $PATH on the terminal, I saw the current path includes
/Library/TeX/texbin, which contains
latexindent. Any idea?