bug#1059: 23.0.60; Error When Trying to Access Remote Files

[Chong Yidong]

[I sent this message several weeks ago, and received no response.
Resending.]

> On Tue, 2008-09-30 at 13:20 -0400, Chong Yidong wrote:
>> > emacs -Q
>> 
>> > (setq debug-on-error t)
>> > C-x C-f /ftp:www.fbeck.net@ftp.strato.de:
>> > [TAB]
>> 
>> > Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
>> >   signal(wrong-type-argument (char-or-string-p nil))
>> >   completion--some(#[(style) "^H A@\n^K\f$" [style
>> >   completion-styles-alist
>> 
>> I can't reproduce this, also using latest CVS and `emacs -Q'.  Could you
>> try to debug the problem?
>
> Not sure. What should I do?

First, could you go to minibuffer.el, evaluate it (M-x eval-buffer),
trigger the error again, and post the backtrace?  This should produce a
more informative backtrace.