Port Install Error

[Bruce Hunter]

I am trying to install 'Portupgrade' using the ports collection
What does this mean? and how do I solve the problem

root at core# make
===>  Vulnerability check disabled
===>  Extracting for portupgrade-20040325_1
 >> Checksum OK for pkgtools-20040208.tar.bz2.
 >> Checksum OK for pkgtools-20040208-20040325.diff.bz2.
===>   portupgrade-20040325_1 depends on file: /usr/local/bin/ruby18 - 
not found
===>    Verifying install for /usr/local/bin/ruby18 in 
/usr/ports/lang/ruby18
Dependency warning: used OpenSSL version contains known vulnerabilities
Please update or define either WITH_OPENSSL_BASE or WITH_OPENSSL_PORT
*** Error code 1

Stop in /usr/ports/lang/ruby18.
*** Error code 1

Stop in /usr/ports/sysutils/portupgrade.

Thanks,
Bruce