Topic on Project:Support desk

Hello,

I have install the math extension but when i try to add a <math> balise in a page, i have this screen :

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MediaWiki internal error.

Original exception: [W-I969TjGCIAAAU3aBUAAAAe] 2018-11-19 04:37:00: Fatal exception of type "Wikimedia\Rdbms\DBQueryError"

Exception caught inside exception handler.

Set $wgShowExceptionDetails = true; and $wgShowDBErrorBacktrace = true; at the bottom of LocalSettings.php to show detailed debugging information.

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When i try to add $wgShowExceptionDetails = true and $wgShowDBErrorBacktrace = true; at the bottom of LocalSettings.php, i have a blank page at the same place.

What ca i do ?

URL of my wiki : www.wikimeca.org/wikimeca_1_31/

Here is my installation specifications :

2 Logiciels installés

Produit	Version
MediaWiki	1.31.1
PHP	7.2.11 (cgi-fcgi)
MySQL	5.5.60-0+deb7u1-log
ICU	52.1

3 URL des points d'entrée

Point d'entrée	URL
Chemin d’article	/wikimeca_1_31/index.php?title=$1
Chemin de script	/wikimeca_1_31
index.php	/wikimeca_1_31/index.php
api.php	/wikimeca_1_31/api.php
load.php	/wikimeca_1_31/load.php

Habillages installés

Habillage	Version	Licence	Description	Auteurs
Monobook	–	GPL-2.0-or-later	L’habillage classique de MediaWiki depuis 2004, nommé d’après la photo en noir et blanc d’un livre dans l’arrière-plan de la page	Gabriel Wicke et autres
Timeless	0.8.1	GPL-2.0-or-later	Un habillage intemporel conçu d’après le prototype Winter par Brandon Harris, et divers styles de la Fondation Wikimédia	Isarra Yos
Vector	–	GPL-2.0-or-later	Version moderne de MonoBook avec un aspect rajeuni et beaucoup d’améliorations ergonomiques	Trevor Parscal, Roan Kattouw et autres

Extensions installées

Greffons de l'analyseur syntaxique
Extension	Version	Licence	Description	Auteurs
Math	3.0.0 (a1263db)17 avril 2018 à 00:54	GPL-2.0-or-later	Restitue les formules mathématiques entre les balises <math> ... </math>	Tomasz Wegrzanowski, Brion Vibber, Moritz Schubotz et Derk-Jan Hartman

Add

$wgShowExceptionDetails = true;
$wgShowDBErrorBacktrace = true;

You missing ; at the line end.

Thanks but i don't think so. Here is the end of my localsettings.php file :

# Add more configuration options below.

$wgShowExceptionDetails = true;

$wgShowDBErrorBacktrace = true;

$wgShowSQLErrors = true;

And i style have a blank page...

May also add

error_reporting( -1 );
ini_set( 'display_errors', 1 );

If you see a blank page, adding the above won't work. You introduced a syntax error somehow when you edited the LocalSettings.php file. Try commenting-out all modified lines to find what's the problem, or look at the webserver error logs.

Thanks for this posts.

My LocalSettings.php file is almost the original one generated during installation. I just add the lines below.

I try to creat a errorlog file by adding :

$wgDebugLogFile = "$wgScriptPath/errorlog.txt";

but the file is empty.

I add the lines :

error_reporting( -1 );
ini_set( 'display_errors', 1 );

too, but nothing new.

A blank page generally means PHP crashes before it can execute a line of code. It can't write a log file.

You can check the web server error log.

Gdwikimeca: were you able to solve this? I am running into the exact same issue.

Never mind. Found the answer here: https://www.mediawiki.org/wiki/Topic:Uoktp9w1ijnxqfcx. Running the update script from the command line fixes things.