Hi Vincent, I don't have Debian. Therefor just a view hints.
1) CGI::Cookie loading is done sometimes dynamically via require. E.g. in CGI.pm itself. 2) mod_perl 1/2 with the helper modules Apache2::RequestUtil interact dynamically. 3) It can be possible that you have a version clash (alone or in combination with other modules). Probably there was once pulled a module in your older server which hinders the same behaviour. Tests: perl -MCGI::Cookie -E'say CGI::Cookie->VERSION' perl -MApache2::RequestUtil -E'say Apache2::RequestUtil->VERSION' On the other hand you can add debug code just before line /home/lib/Marica/Base/login.pm line 198 to inspect the %INC hash to see whether CGI::Cookie was loaded somewhere. You can also find the file Cookie.pm in your include path and put a print STDERR map { "$_\n" } caller; into it to find the location in Apache error log where it gets loaded in the module stack. Best regards Andreas -----Ursprüngliche Nachricht----- Von: Vincent Veyron <vv.li...@wanadoo.fr> Gesendet: Sonntag, 31. Mai 2020 20:50 An: modperl@perl.apache.org Betreff: Can't locate object method "new" via package "CGI::Cookie" Hi List, I have two servers using mod_perl, both having the same modules installed and enabled; server1 got a fresh install of Debian Buster, while server2 was upgraded to Buster from Stretch. This code : my $cookie = CGI::Cookie->new(-name => 'session', -value => $session_id, -domain => $hostname ) ; generates the following error on server2 : [Sun May 31 19:54:03.053725 2020] [perl:error] [pid 30663] [client 83.113.48.133:59196] Can't locate object method "new" via package "CGI::Cookie" (perhaps you forgot to load "CGI::Cookie"?) at /home/lib/Marica/Base/login.pm line 198.\n, referer: https://marica.fr/site/abonnes/index.html It works fine if add "use CGI::Cookie" to my module. What could be the reason why it works on server1 without "use CGI::Cookie" and not on server2? -- https://compta.libremen.com Logiciel libre de comptabilité générale en partie double