I’m using: SWI-Prolog version 8.1.9 on Windows 8.1.
Something about my latest code build is really making SWI-Prolog unhappy. I never had this problem before. I can load the navigator fine before I consult my source files after making a fresh load of the console. Immediately after I consult my source files, trying to activate the navigator does bring the window up, but then I get the spinning wheel of death and these errors in the console:
ERROR: ../nlg.pl:40: ERROR: Unhandled exception: prolog_navigator:loading/2: Unknown procedure: prolog_navigator:'$qlf_info'/8 ERROR: ../nlg.pl:40: ERROR: Unhandled exception: prolog_xbrowse:process_body/2: Unknown procedure: prolog_xbrowse:xref_meta/2