So ive been following the Beginning Perl (Curtis 'Ovid' Poe)tutorial found here, http://web.archive.org/web/20120624221651/http://ofps.oreilly.com/titles/9781118013847/the_interwebs.html, and ive run into a bit of a snag. whenever i try to run plackup on the command prompt it just gives me the error message, PSGI app should be a code reference: undef at C:/Dwimper/perlsite/lib/Plack/Middleware/Lint.pm line 13, i checked there and i think its failing because the app im trying to run does not equal a reference to some variable called 'CODE', but i cant understand why. here is a copy of the test app im trying to run


sub app {
     my $env = shift;
     return [
         '200',
         [ 'Content-Type' => 'text/plain' ],
         [ "Hello World" ]
     ];
 }

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sorry if this is a stupid question or if there are any formatting errors its my first post

In reply to plackup problem by Perler#2

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