This is not the appropriate place for mod_perl support. Check mod_perl's Getting Help.

I do have a quick comment and possible solution:

I don't think "traditional CGI" pays any attention to PerlSwitches, so it's no surprise it doesn't know about the new paths.

What's the package used in Hello.pm? It should be package pl::Hello.

In reply to Re: Apache/mod_perl2 : "failed to resolve handler" by ikegami
in thread Apache/mod_perl2 : "failed to resolve handler" by jpeg

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