Re: [R] Error: file association for 'doc\html\index.html' not available or invalid

From: Jon Olav Vik <>
Date: Fri, 07 Mar 2008 12:57:44 +0100

On 3/7/08, Prof Brian Ripley <> wrote:
> > Today HTML help stopped working. The menu command "Help > Html help" usually
> > brings up my default web browser (Opera 9.26), but now R gives the error
> > Error: file association for 'doc\html\index.html' not available or invalid
> > If I try the same menu command a second time, R crashes
> Try re-setting the file association for .html files -- it looks as if it
> has been corrupted (not by R).

Blimey. It worked.

I'm sorry I didn't mention it in my first post, but *.html files did open with Opera even while R would crash. However, following your suggestion, I looked at the Properties for an html file, and it said "Opens with: unknown application". (Strangely enough, the file icon was still Opera's "O".) So I re-selected Opera as the default application, and everything went back to normal. Thank you so much for your help!

Jon Olav mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Fri 07 Mar 2008 - 13:24:35 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Fri 07 Mar 2008 - 13:30:19 GMT.

Mailing list information is available at Please read the posting guide before posting to the list.

list of date sections of archive