Re: [VM] 8.2.0a: vm-save-message: Wrong type argument: number-or-marker-p, nil

[Uday Reddy]

On 5/19/2011 9:22 AM, Salome Södergran wrote:

> I get "vm-save-message: Wrong type argument: number-or-marker-p, nil"

That looks like a bug.  Whenever you get an error message that appears 
to be from Emacs Lisp (such as "wrong type argument" here), it is best 
to assume that it is a bug, and send me a vm-submit-bug-report.

The error messages that are given by VM itself would be usually 
intelligible.

When you file a bug report for this kind of a problem, you can help me 
by doing a bit of work.

1. The first symbol in the message, such as `vm-save-message' is the 
Lisp function that gave the error.  If you do C-h f on that symbol, you 
can find out which Lisp file is involved.  In this case, it is `vm-save.el'.

2. Do M-x load-library for the .el file in question.  This will load the 
uncompiled code for the function, which can help us track down the problem.

3. Do M-x toggle-debug-on-error, which asks Emacs to enter a debug mode 
when it runs into errors.  When the debug mode is entered, you get a 
backtrace.  Please copy the backtrace into the bug report.  (After this 
you can do M-x toggle-debug-on-error again to turn off debug mode, and 
continue as normal.)

Hopefully, we won't have too many problems of this kind.  Or, I will 
need to withdraw the release and do more work before coming back.  (By 
the way, a number of our users regularly download the development 
version and use it in their daily work.  If I commit buggy code, usually 
I get to find out about the problems within hours.  It is only the cases 
that they don't exercise that show up in releases.  I take this 
opportunity to thank these real alpha-testers for their initiative and 
helpfulness.)

Cheers,
Uday