Question

I downloaded plweb from http://www.swi-prolog.org/git/plweb.git/snapshot/7cd70cef6011b480ef05f2b8679728abba719c0c.tar.gz

$cd plweb-7cd70ce/
$./run 
ERROR: plweb-7cd70ce/register.pl:35:
    source_sink `library(smtp)' does not exist
Warning: plweb-7cd70ce/register.pl:35:
    Goal (directive) failed: register:use_module(library(smtp))
Warning: plweb-7cd70ce/load.pl:50:
    Using CLP(FD) with bounded arithmetic may yield wrong results.
ERROR: /home/***/swi-prolog/lib/swipl-6.2.6/library/clp/clpq/store_q.pl:347:
    evaluable `-1 rdiv _G43862' does not exist
ERROR: /home/***/swi-prolog/lib/swipl-6.2.6/library/clp/clpq/bv_q.pl:85:
    Exported procedure store_q:isolate/3 is not defined
...

Regards !

Answer 1

After your question, I tried the same, from the link you supply, but got different errors: about smtp, try ?- pack_install(smtp). that solved the first error for me. Then I have different problems than yours

?- [load].
ERROR: /home/carlo/lib/swipl-6.3.7/library/explain.pl:36:
    source_sink `library(helpidx)' does not exist
Warning: /home/carlo/lib/swipl-6.3.7/library/explain.pl:36:
    Goal (directive) failed: prolog_explain:load_files(library(helpidx),[if(changed)])

while you are running without GMP support. I’ll try to recover helpidx.pl and I’ll report the outcome, but cannot say anything about miss GMP support (I do have it).

edit I took the first link that google answer when queried ‘swi-prolog generate helpidx’, pasted the source in a library directory (paths inspected with ?- file_search_path(library, X).). Then I’ve done:

?- [load].
% Library was moved: library(http/dcg_basics) --> library(dcg/basics)
% load compiled 7.36 sec, 33,882 clauses
true.

I think that helpidx.pl is meant to be generated, not picked from a random source.. Next I’ll try to understand better the documentation server, to see if I can solve this last problem.

HTH