I am facing the same problem in several places in my application where I am using a menu bound to an hlist.

I do not understand the proposed solution and how scoping plays a part

In my application I am assigning the menu object to a hash element so that I can refer to it and try to destroy it when the window is going to close. like this:

   $winInfoRef->{MENU}= $winInfoRef->{HLIST}->Menu(-tearoff=>1,
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I have recreated the problem with the originally posted example code, I changed the lines to make $pop_menu a global as suggested (and relisted below)

#~ my $pop_menu = $frame->Menu(  -menuitems =>
our $pop_menu ;
$pop_menu ||= $frame->Menu(  -menuitems =>
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but I still get the same error:

Tk::Error: window ".toplevel.frame.hlist.menu" was deleted before its 
+visibility changed at 
C:/Perl/site/lib/Tk/Widget.pm line 1000.
 Tk callback for tkwait
 <Button-1>
 (command bound to event)
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Thomas said he withdrew his menu, but I tried that too with no success(maybe I don't know how) Can anyone share more insight into this error?

to Tk-804.033, then you don't have to learn anything

perl -v 
v5.22.2 (32 bit)
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perl -MTk -e "print $Tk::VERSION" shows
804.033
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Were you implying that this version should have fixed a problem with destroying the popup menu?

Thanks!