I am using MacOSX (Yosemite 10.10) and I have a problem trying to convert from markdown to PDF.

The error message is:

! Undefined control sequence.
l.268 for Windows the file is at *C:\Windows

enter image description here

  • We need more information than this to adequately address your problem.
    – Werner
    Dec 23, 2014 at 16:59
  • How could I give you more information? It is the only message that I get. Edit: I have edited the message with a snapshot
    – Xatpy
    Dec 23, 2014 at 17:02
  • @Xatpy: The visual output from the terminal is far more helpful that some of the coded errors using markdown on this network.
    – Werner
    Dec 23, 2014 at 17:13
  • thanks Werner, but I was asking how could I give you more details.
    – Xatpy
    Dec 23, 2014 at 17:14
  • I think this question is off-topic though, as it deals with Markdown, not (La)TeX.
    – Werner
    Dec 23, 2014 at 17:21

1 Answer 1


Your problem here is that \Windows is considered as a macro (control sequence) that does not exist. However, you are probably interested in displaying the literal folder C:\Windows (say).

Similar to how such entries are escaped here on TeX - LaTeX, you need to use backticks to escape inline code:


So, use

... for Windows the file is at `C:\Windows` ...
  • Thanks for your answer Werner. But my question is: where should I edit that command? In what file?
    – Xatpy
    Dec 23, 2014 at 17:13
  • @Xatpy: The error references l.268 (or line 268), which should be in documentation.md.
    – Werner
    Dec 23, 2014 at 17:14

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