Getting help, asking questions, solving problems

There are several places you can get help or ask questions about SWI-Prolog or Prolog programming in general.

• The list of frequently asked questions
• SWI-Prolog Discourse forum (best place to get answered for SWI-Prolog specific questions)
• StackOverflow questions with these tags: swi-prolog, prolog (best place for issues with class room exercises that are not SWI-Prolog specific)
• The Prolog IRC channel ##prolog has moved to libera.chat (server irc.libera.chat)
• SWI-Prolog issue tracker at GitHub (See reporting a bug for guidelines about reporting a bug)

It usually takes about one day for a volunteer to reply to your question. We appreciate your patience.

Forum and mailing list

The forum and mailing list for SWI-Prolog is kindly hosted by Discourse. This list is used for announcements as well as questions and discussion among users. On average, traffic is 5-10 messages per day. Details:

• The forum can be viewed here
• It provides local accounts and login with GitHub. Other login with options will follow.
• Please read this topic if you want to access the forum primarily through email.

Old mailing lists

• Before moving to Discourse (Feb 4, 2018), SWI-Prolog discussion was hosted as a Google group.
• Before being moved to a Google group (May 1, 2014), the mailing list was kindly hosted by the University of Bonn. The archives of this list are still available here.

Tip: include SWIPL to search the mailinglist archives.

Related mailinglists

• mailinglist for CHR
• mailinglist for ClioPatria

Other places

• The newsgroup comp.lang.prolog (see also its Google Groups archive)