pandoc：使用 R Markdown 生成 PDF 时出错

Question

When doing pandoc mymarkdown.md -o mypdf.pdf I get the following error:

! Undefined control sequence.
l.279 ...e know that the element stored at \(x \lt

pandoc: Error producing PDF

I'm confused, as using pandoc with any other markdown file works for me. l.279...e know that the element stored at \(x \lt corresponds to a line in my md file. If I remove that line from the file, the error persists, giving a different line and so on.

Answer 1

Unicode character fi (U+FB01)

It suggests there's a character that is cannot be converted correctly. If you're getting literally that error—with no visible character—then what's probably happening is that you have some sort of invisible or space Unicode character in your document. For instance, option + space on Mac will leave an invisible non-breaking space, which gives an error that looks like that.

What you can do is starting from an empty document, then add one paragraph at a time, until you find the problem, then try to "re-write" the problem part.