Hello, I am working through examples in paragraph 3 of Learn prolog now! I always get that error/message. I googled it and I cannot get what I am supposed to reply: call('$bags':'$destroy_findall_bag') ? I just restart the program but this is not optimal :). What does it signify?

You are still in trace mode. Simply hit ‘n’ (nodebug). The interaction using ?- trace. [trace] ?- mygoal. is the standard way of doing this in Prolog, but it leads to these misconceptions. Totally suspending trace when loading a file is possible, but would make it impossible to debug user code…

Destroy findall bags

Help!

EricGT Split this topic September 18, 2019, 10:34pm 7

2 posts were split to a new topic: What does myGoal mean?

Topic		Replies	Views
"No permission to append findall-bag" General	6	549	February 7, 2020
Why is predicate traced when using "trace, predicate." but not when using "trace." then "predicate." Help!	0	305	November 5, 2020
Thinking In Prolog - for procedural programmers Help!	18	3421	July 21, 2019
Debugging aggregations in place Tools	7	505	November 27, 2020
Bug hunting toolbox Wiki	2	2879	May 17, 2025

Destroy findall bags

Related topics