But it does not work with Pd 0.52-3 and Pd 0.52-4.

This is what the Terminal reports :

Last login: Tue Jul  6 09:30:01 on ttys000
mauricemoncozet-1:~ moncozetmaurice$ /Applications/Pd-0.51-4.app/Contents/Resources/bin/pd ; exit;
localhost not found (inet protocol not installed?)
nodename nor servname provided, or not known (8)logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

[Opération terminée]

What setting should I make?

Thank you for your response.