$ ikiwiki -setup mywiki.setup
    generating wrappers..
    rebuilding wiki..
    Cannot decode string with wide characters at /opt/local/lib/perl5/5.12.3/darwin-multi-2level/Encode.pm line 175.

I am running Mac OS X 10.6.8

    $ ikiwiki --version
    ikiwiki version 3.20110608
    $ perl --version
    
    This is perl 5, version 12, subversion 3 (v5.12.3) built for darwin-multi-2level