Topic on Project:Support desk

I just installed the math extension.

If I use the math-environment, it produces errors.

An empty math-environment will be processed correctly, but as soon as it gets any content, e.g. <math>a</math>, it produces error messages like

Datenbankfehler

Es ist ein Datenbankabfragefehler aufgetreten. Dies könnte auf einen Fehler in der Software hindeuten.

[c5d579b6c896fd685d557fa0] 2017-08-20 14:21:29: Fataler Ausnahmefehler des Typs „DBQueryError“

sudo -u www-data php update.php returned

MediaWiki 1.28.2 Updater

Your composer.lock file is up to date with current dependencies!

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

Can you suggest me a solution?

Thank you in advance!

Yours, Ciciban (talk) 14:45, 20 August 2017 (UTC)

DBQueryError... maybe you forgot to run update.php after installing math?

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

Thank you for your answer.

I did run update.php, as i have mentioned above.

I have now added $wgShowExceptionDetails = true; to my LocalSettings and again run sudo -u www-data php update.php. This time it returned:

MediaWiki 1.28.2 Updater

Your composer.lock file is up to date with current dependencies!
[fca32ac38af55bce3e3aab88] [no req]   InvalidArgumentException from line 357 of /var/lib/mediawiki/includes/libs/rdbms/database/Database.php: Database::factory no viable database extension found for type 'mysql'
Backtrace:
#0 /var/lib/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(852): Database::factory(string, array)
#1 /var/lib/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(684): LoadBalancer->reallyOpenConnection(array, boolean)
#2 /var/lib/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(576): LoadBalancer->openConnection(integer, boolean)
#3 /var/lib/mediawiki/includes/GlobalFunctions.php(3075): LoadBalancer->getConnection(integer, array, boolean)
#4 /var/lib/mediawiki/maintenance/Maintenance.php(1250): wfGetDB(integer, array, boolean)
#5 /var/lib/mediawiki/maintenance/update.php(144): Maintenance->getDB(integer)
#6 /var/lib/mediawiki/maintenance/doMaintenance.php(111): UpdateMediaWiki->execute()
#7 /var/lib/mediawiki/maintenance/update.php(217): require_once(string)
#8 {main}

According to spezial:version my mediawiki version is 1.28.2 and my math extension is version 3.0.0 (1097ee7) 06:38, 1. Feb. 2017.

yours, Ciciban (talk) 12:17, 21 August 2017 (UTC)

Oh sorry, I didn't read part of your message!

The command line php binary is using a different php.ini file than your web server, you need to enable the mysql extension in that php.ini too.