Help with new port - required port already installed error

[Rod Person]

Hi,

I working on a new new port that requires the existing port
graphics/py-qt4-svg.  If this port is installed on the sytem already
I get the error below.  I have tried this on a secondary system of
mine and also redports.org and get the same error.  Is there anyway I
can fix this.  

This is a like the port I'm working on
http://www.rodperson.com/usr/www/users/pl905/rodperson.com/DL/spyder

===>  Installing for py27-qt4-svg-4.10.3,1
===>  Checking if graphics/py-qt4-svg already installed
===>   py27-qt4-svg-4.10.3,1 is already installed
      You may wish to ``make deinstall'' and install this port again
      by ``make reinstall'' to upgrade it properly.
      If you really wish to overwrite the old port of
graphics/py-qt4-svg without deleting it first, set the variable
"FORCE_PKG_REGISTER" in your environment or the "make install"
command line.

-- 
Rod

http://www.rodperson.com

He who knows himself to be one way and pretends it is another way is a
thief who robs his own soul.

  The Mahabharata
     Sakuntala 25