[Zope] zope2.13.29 issue: WARNING Application Duplicate Product name: After loading Product...

[Giampiero Benvenuti]

Hello everybody,

I just installed zope2.13.29 following the instruction here:
https://zope.readthedocs.io/en/2.13/INSTALL-virtualenv.html

when I ./bin/zopectl fg
I get: 
WARNING Application Duplicate Product name: After loading Product * from /home/giampiero/zope2.13.29/local/lib/python2.7/site-packages/Products,  I skipped the one in '/home/giampiero/zope2.13.29/lib/python2.7/site-packages/Products

It’s a fact that all the products are installed in both directories: 
zope2.13.29/local/lib/python2.7/site-packages/Products
and 
zope2.13.29/lib/python2.7/site-packages/Products

How should I go with it? Should I leave it as it is, or should I do something about it? If so what would you recommend?

Thanks so much in advance for your help.

Giampiero