can't enqueue event ``_signal'' for nonexistent session POE::Kernel=ARRAY(0 x21cba28) POE::Kernel::_data_ev_enqueue('POE::Kernel=ARRAY(0x21cba28)', 'POE::Kern el=ARRAY(0x21cba28)', 'POE::Kernel=ARRAY(0x21cba28)', '_signal', 16, 'ARRAY(0x21 15de8)', 'C:/Perl/site/lib/POE/Loop/Tk.pm', 61, ...) called at C:/Perl/site/lib/ POE/Loop/Tk.pm line 60 POE::Kernel::_loop_signal_handler_generic('INT') called at C:/Perl/site/ lib/Tk.pm line 340 Tk::MainLoop() called at test.pl line 864