Set/IntSpan.pm -- Around line 134: You forgot a '=back' before '=head2' Around line 136: '=item' outside of any '=over' Around line 186: Expected '=item 2' Around line 190: Expected '=item 3' Around line 194: Expected '=item 4' Around line 198: Expected '=item 5' Around line 202: Expected '=item 6' Around line 206: Expected '=item 7'