>> [0] C:/Perl64/lib/Term/ReadKey.pm :  274:     if ( ref($file) ) { return $file; }    # Reference is fine
>> [0] (eval 9)[C:/Perl64/lib/Term/ReadKey.pm:522]:    3: ???
>> [0] (eval 9)[C:/Perl64/lib/Term/ReadKey.pm:522]:    7: ???
>> [0] (eval 9)[C:/Perl64/lib/Term/ReadKey.pm:522]:    8: ???