Connection probs to STACK server

Connection probs to STACK server

by Fabienne Neveu -
Number of replies: 5

Hi there,


we have two moodle-platforms with STACK-Plugins that communicate

with a STACK-server on a third server. Both Moodle instances are Windows server. 

The Moodle Versions are  

1.) Moodle 3.2.3+ (Build: 20170509) 

2.) Moodle 3.2.3 (Build: 20170508) 


on 1.) we have a connection prob with our STACK server.

The error message on the healthcheck.php - Skript:


FAILED CAS failed to return any evaluated expressions. Please check your connection with the CAS. CAS returned some data as expected, but there were errors.

FAILED CAS failed to return any evaluated expressions. Please check your connection with the CAS.

CAS results are being cached in the database.


on 2.) it works. healthcheck.php script says:

OK You have chosen the "default" version of Maxima, so no Maxima version checking is being done. Your raw connection is actually using version "5.37.2". CAS returned data as expected. You have a live connection to the CAS.

OK Correct and expected STACK-Maxima library version being used (2016022900).

CAS results are being cached in the database.


On both Moodle-instances I set

maximaversion=default

Can force STACK somehow to use the raw connection?

What can be done in order to let my first Windows instance communicate with the STACK server?


... would be grateful for your help!


Best Fabienne!


Average of ratings: -
In reply to Fabienne Neveu

Re: Connection probs to STACK server

by Christopher Sangwin -
Picture of Particularly helpful Moodlers Picture of Plugin developers

Fabienne,

I'm happy to help if you drop me an email at Edinburgh:  C.J.Sangwin@ed.ac.uk.  These kinds of issues are normally very easy to resolve (settings on the plugin page) but a public forum is probably not the best place to discuss this!  

Chris


In reply to Christopher Sangwin

Re: Connection probs to STACK server

by Fabienne Neveu -
Hi,


it's really puzzling. So I attached the debug info of healthcheck.php of both servers.

Thanks for help ...


Best,

Fabienne


Attachment dev.PNG
Attachment working_connection.PNG
In reply to Fabienne Neveu

Re: Connection probs to STACK server

by m klier -

Hey Fabienne,


could you solve your problem? Could you tell my how?


greetings

In reply to m klier

Re: Connection probs to STACK server

by Fabienne Neveu -

This prob was due to a PHP version and is now solved.

PHP 7.2 ... arrays


In reply to Fabienne Neveu

Re: Connection probs to STACK server

by m klier -

Thank you for your answser.

We solved it too.

The maxima package had the version number "5.41post" but the lisp program need numbers like "5.41.1" to work properly.