./tobj.pl
Can't locate package SDU::CommandHandler for @SDU::CommandHandlerSDU::ISA at
        ./tobj.pl line 4 (#1)
    (F) You said to do (or require, or use) a file that couldn't be
    found. Perl looks for the file in all the locations mentioned in @INC,
    unless the file name included the full path to the file.  Perhaps you
    need to set the PERL5LIB or PERL5OPT environment variable to say where
    the extra library is, or maybe the script needs to add the library name
    to @INC.  Or maybe you just misspelled the name of the file.  See
    perlfunc/require and lib.
    
Can't locate package SDU::CommandHandler for @SDU::CommandHandlerSDU::ISA at
        ./tobj.pl line 14 (#1)
Can't locate object method "new" via package "SDU::CommandHandlerSDU" at
        ./tobj.pl line 14 (#1)
Uncaught exception from user code:
        Can't locate object method "new" via package "SDU::CommandHandlerSDU" at ./tobj.pl line 14.