While adding HG files I get a message about removing them

I'm getting the message below when adding files in this directory:

C:\Users\developer\Versioned\Conferences\2013\20131104-EKON-17-Day-1-Köln-Germany

This looks like a unicode problem, or a directory depth problem.

Message:

hg remove -y -f 2013\20131104-EKON-17-Day-1-K�ln-Germany\Cross-Plattform-Entwicklung-mit-Delphi-Android-iOS-Mac-und-Windows\Cross-Plattform-Entwicklung-mit-Delphi-Android-iOS-Mac-und-Windows.md 2013\20131105-EKON-17-Day-2-K�ln-Germany\Smart-Mobile-Studio\Smart-Mobile-Studio.md
not removing 2013\20131104-EKON-17-Day-1-K�ln-Germany\Cross-Plattform-Entwicklung-mit-Delphi-Android-iOS-Mac-und-Windows\Cross-Plattform-Entwicklung-mit-Delphi-Android-iOS-Mac-und-Windows.md: file is untracked

not removing 2013\20131105-EKON-17-Day-2-K�ln-Germany\Smart-Mobile-Studio\Smart-Mobile-Studio.md: file is untracked

Completed with errors, see above.