SWI Prolog

Raised as a usability problem by 5 people on Hacker News over 14 years (2013–2026), in 5 threads.

People raised many different problems with SWI Prolog, but no single problem has yet been raised by 3 people in 3 different months and threads.

Unreviewed issues were grouped by machine: Claude Haiku labelled each comment as a usability complaint, named what it's about and summed up the problem in a line, and a small model grouped similar problems. Nobody has checked them by hand. Expect mistakes.

The newest 5 complaints

Pressing ';' to get more results is confusing because it reads like 'or'2026-05-22
Can't figure out how to run a Prolog file; the error is cryptic and docs unhelpful2023-02-10
Students found the Prolog IDE and its interface awful compared to modern tools2019-05-07
Help and docs menu commands fail with an error and close the app2017-05-29
Couldn't work out how to increase the font size on a school machine2013-10-07