trouble installing vbox additions

[papa]

Hi all,

I have just installed FreeBSD 12.1 into a Vbox version 6.14.

Im trying to install the guest additions files and was confused.

cd to /usr/ports/emulators/virtualbox-ose-additions

then make

and got following error

env: /usr/local/bin/perl5.30.2: No such file or directory

while I have installed perl5-5.30.1 and it seems to be the last version 
available

Whats wrong?

and... is there a pkg for this package?


thank you in advance

paps