Wrong type argument: frame-live-p, #<dead frame *Group* 0x91ca460>

Wrong type argument: frame-live-p, #<dead frame *Group* 0x91ca460>

[lsilvapereyra]

Dear Emacs users,

I'm using "GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version
2.12.9) of 2008-11-06". I think this is not a bug. I have a simple
function:

(defun kill-this-buffer-and-frame ()
   (interactive)
   (kill-this-buffer)
   (delete-frame))

It works as intended (that is, it kills the buffer and deletes the
frame) most of the time, but sometimes (I haven't been able to
determine when) I get:

Wrong type argument: frame-live-p, #<dead frame *Group* 0x91ca460>

and it doesn't work. I'd be very grateful for any help or commentary.

Regards,
luis

RE: Wrong type argument: frame-live-p, #<dead frame *Group* 0x91ca460>

[Drew Adams]

> (defun kill-this-buffer-and-frame ()
>    (interactive)
>    (kill-this-buffer)
>    (delete-frame))
> 
> It works as intended (that is, it kills the buffer and deletes the
> frame) most of the time, but sometimes (I haven't been able to
> determine when) I get:
> 
> Wrong type argument: frame-live-p, #<dead frame *Group* 0x91ca460>
> and it doesn't work. I'd be very grateful for any help or commentary.

Try using:

(when (frame-live-p (selected-frame)) (delete-frame))

or (probably better):

(when (and (frame-live-p (selected-frame))
           (kill-this-buffer))
  (delete-frame))

Re: Wrong type argument: frame-live-p, #<dead frame *Group* 0x91ca460>

[martin rudalics]

 > (defun kill-this-buffer-and-frame ()
 >    (interactive)
 >    (kill-this-buffer)
 >    (delete-frame))
 >
 > It works as intended (that is, it kills the buffer and deletes the
 > frame) most of the time, but sometimes (I haven't been able to
 > determine when) I get:
 >
 > Wrong type argument: frame-live-p, #<dead frame *Group* 0x91ca460>

Sometimes a separate frame gets automatically killed along with its
buffer, so you should not call `delete-frame' after `kill-this-buffer'.

However, in the special case there's another function which wants to do
something in the *Group* frame after you killed it.  You would have to
tell us which package is responsible for creating the *Group* frame in
order to find out where the error comes from.

martin