Upgrading 10.4 to 11.1

[Robert Fitzpatrick]

I did a freebsd-update fetch install on 10.4 and then the standard 
upgrade to 11-RELEASE p9 with no problems. Now I'm ready to run upgrade 
all the ports and did a portsnap fetch update first, but this doesn't 
look right:

root at dev:~ # portupgrade -a
[Reading data from pkg(8) ... - 150 packages found - done]
** Port marked as IGNORE: www/apache24:
         Invalid perl5 version 5.18
** Port marked as IGNORE: textproc/aspell:
         Invalid perl5 version 5.18
...

Getting the Invalid perl5 for all the packages, I tried doing pkg 
upgrade perl5 and ended up adding /usr/local/bin/perl and the ports 
still looking at perl5.18 in /usr/bin/perl. Have I done something wrong 
or need to handle Perl separate first?

-- 
Robert