Tk::Error: Failed to AUTOLOAD 'Tk::Widget::insert' at C:/Dwimperl/perl/site/lib/ Tk/Derived.pm line 469 Carp::croak at C:/Dwimperl/perl/lib/Carp.pm line 100 Tk::Widget::__ANON__ at C:/Dwimperl/perl/site/lib/Tk/Widget.pm line 347 Tk::Derived::Delegate at C:/Dwimperl/perl/site/lib/Tk/Derived.pm line 469 Tk::Widget::__ANON__ at C:/Dwimperl/perl/site/lib/Tk/Widget.pm line 322 main::push_button2 at top.pl line 62 Tk callback for .toplevel.button1 Tk::__ANON__ at C:/Dwimperl/perl/site/lib/Tk.pm line 251 Tk::Button::butUp at C:/Dwimperl/perl/site/lib/Tk/Button.pm line 175 (command bound to event)