Re: error message:wrong type argument: listp, unbound

[sarah]

Kevin Rodgers wrote:

> sarah wrote:
>> I got the error message as the title when I used C-x C-f to open a *.C
>> file, emacs(21.3.2). I have to reopen it then it's fine, which means I
>> have to open it twice. It doesn't complain when trying to open *.txt
>> file.
>> 
>> Any suggestions?
> 
> M-x set-variable RET debug-on-error RET t RET
> C-x C-f foo.C RET
> 
> Then post the *Backtrace* buffer contents here.
> 

Thanks for replying my email, kevin. 

It turns out to be the problem of using ECB code browser for C++. I disabled
it, then the error message is gone. I guess I didn't configure ECB to be
right and something weird I couldn't figure out is happending there.