File mode specification error: (file-error "Cannot open load file" "sb-html")

[David Huggins-Daines]

Binary package hint: emacs23

When I open a file with the extension .html, I get this error message. It seems that Emacs is able to switch into HTML mode anyway, but I'm not sure what this error means...

ProblemType: Bug
Architecture: amd64
Date: Sat Dec 12 12:04:18 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: emacs23 23.1+1-4ubuntu3.1
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
SourcePackage: emacs23
Uname: Linux 2.6.31-16-generic x86_64

[era (era)]

sb-html is related to the speedbar package.

Can you reproduce this error message with emacs -q (i.e. without loading any personal Emacs preferences of yours)?

Did you previously use a different version of Emacs, by any chance?

If you (setq debug-on-error t) and then load a .html file, do you get a backtrace? If yes, could you save that buffer and attach the resulting file to this bug report? Thanks in advance.

[David Huggins-Daines (dhuggins)]

Hi, here's the backtrace with emacs -q and debug-on-error set to t:

Debugger entered--Lisp error: (file-error "Cannot open load file" "sb-html")
  require(sb-html)
  (lambda nil (require (quote sb-html)))()
  run-hooks(text-mode-hook sgml-mode-hook html-mode-hook)
  apply(run-hooks (text-mode-hook sgml-mode-hook html-mode-hook))
  run-mode-hooks(html-mode-hook)
  html-mode()
  set-auto-mode-0(html-mode nil)
  set-auto-mode()
  normal-mode(t)
  after-find-file(t t)
  find-file-noselect-1(#<buffer foo.html> "~/foo.html" nil nil "~/foo.html" nil)
  find-file-noselect("~/foo.html" nil nil t)
  find-file("~/foo.html" t)
  call-interactively(find-file nil nil)

One detail that may be relevant here is that I have Emacs.toolBar: 0 in my .Xresources. However, if I remove this resource, I still get the same problem.

This occurs regardless of whether foo.html already exists or not.

[David Huggins-Daines (dhuggins)]

Oh I found the offending hook, it is in /etc/emacs/site-start.d/51speedbar.el, which is from the speedbar package (which I have no memory of installing, actually!)

So this is more likely to be a bug in speedbar.

I did previously use emacs22 and emacs-snapshot.

[era (era)]

Reassigning to speedbar as per the above comment.

[era (era)]

Quoting Launchpad:
> 'speedbar' is a binary package. This bug has been assigned to its source package 'cedet' instead.

[Old Account (oldaccount)]

The speedbar is a separate package in Ubuntu and I think that newer versions of Emacs ship with it by default...

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.