Project:Support desk

Welcome to the MediaWiki Support desk, where you can ask MediaWiki questions!

(Read this message in a different language)

See also

Other places to ask for help:

• Chat rooms
  • Wikimedia Chat (Mattermost)
  • MediaWiki unofficial (Discord)
  • Outreachy chat (Zulip)
  • Hackathon chat - (Telegram @wmhack group)
• Email groups
• StackOverflow (third-party)
• Unofficial MWUsers forum (third-party)

Before you post

• Check the basic How does MediaWiki work? guide.
• Check the FAQ and Errors and symptoms .
• If your question is about a specific feature, check the relevant technical manual , end-user help or extension page and consider asking on its talk page .
• For issues about the mediawiki.org website, report to Current issues instead.
• For trying out wiki editing, use the Sandbox instead.

Post a new question

1. To help us answer your questions, please indicate which versions you are using, as found on your wiki's Special:Version page:
   • MediaWiki version
   • PHP version
   • Database type and version
2. Please include the web address (URL) to your wiki if possible. It's often easier for us to identify the source of the problem if we can see the error directly.
3. To start a new thread, click "Start a new topic".

hello j

1) I have installed MediaWiki 1.35.1 on Ubuntu 20.04.1 system.

2-I also installed bitnami lamp stack 7.4.13 as a local server

3) I was able to configure the wiki and get the localsetting.php file.

4) I normally have access to the wiki database stored in phpmyadmin.

5)also install semantic bundle via dial however when I execute the command

php maintenace/update.php in the mediawiki directory I'm facing the following problem

I really need help

thanks to you

(base) jean@jean-HP-Pavilion-x360-Convertible-14m-cd0xxx:~/lampstack/apache2/htdocs/mediawiki$ php maintenance/update.php

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

InvalidArgumentException from line 509 of /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/database/Database.php: Wikimedia\Rdbms\Database::getClass no viable database extension found for type 'mysql'

#0 /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/database/Database.php(458): Wikimedia\Rdbms\Database::getClass()

#1 /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1242): Wikimedia\Rdbms\Database::attributesFromType()

#2 /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1284): Wikimedia\Rdbms\LoadBalancer->getServerAttributes()

#3 /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1096): Wikimedia\Rdbms\LoadBalancer->reallyOpenConnection()

#4 /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(929): Wikimedia\Rdbms\LoadBalancer->getLocalConnection()

#5 /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(901): Wikimedia\Rdbms\LoadBalancer->getServerConnection()

#6 /home/jean/lampstack/apache2/htdocs/mediawiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1046): Wikimedia\Rdbms\LoadBalancer->getConnection()

#7 /home/jean/lampstack/apache2/htdocs/mediawiki/maintenance/includes/Maintenance.php(1371): Wikimedia\Rdbms\LoadBalancer->getMaintenanceConnectionRef()

#8 /home/jean/lampstack/apache2/htdocs/mediawiki/maintenance/update.php(141): Maintenance->getDB()

#9 /home/jean/lampstack/apache2/htdocs/mediawiki/maintenance/doMaintenance.php(107): UpdateMediaWiki->execute()

#10 /home/jean/lampstack/apache2/htdocs/mediawiki/maintenance/update.php(253): require_once('/home/jean/lamp...')

#11 {main}

Today I updated my Wiki to 1.35.

Now I have trouble with my tweeki-Skin, which is - at least I hope so - related to the tweeki-software.

Anyway - since the update somehow my Navboxes (in german Navigationsleisten) (i.e. http://www.huskywiki.de/HuskyWiki//index.php?title=Brad_Burym) stopped collapsing. I didn't change anything to the Commons.css or .js.

Does anyone have a clue...?

@TexasR87 Open any web browser, open that web browser's developer tools and go to "console", then open your patch and see the errors. :)

Thanks for your reply.

I'm not a real professional concerning my developing skills.

Can you point me into a certain direction - bc I have absolutely no idea...

Hello, I am looking for a way to include the code for substitution in a template. That is to say that I would to create a template A and when I write {{A}} and publish my edit, {{A}} would be replaced by its code, without using {{suubst:A}} ? Is there a way to do that ? Thank you in advance.
~~~~

no.

Some people add code to the template to output a warning if it was not subst: but was supposed to be

Some people use pywikibot for this purpose to go over edits and subst things.

OK. Thank you for your answer.

Hallo all

I have upgraded my wiki from Ver 1.30 to Ver:1.34.2

- after upgrade got a error /Rdbms/SQL ..etc

then have run the file --> /srv/www/mediawiki/maintaince/update.php

but my wiki have no data and please let me know how can reset my data..

Thanks in advance

@Satyaps2251 Hi, please be more specific, provide clearer steps to reproduce, and explain what makes you think that you "have no data". Please see the sidebar here. Also, why you are upgrading to outdated ancient insecure version 1.34.2 instead of a supported software version?

Hi Malyacko,

Thank you for your kind reply.

actually im upgrading for the "extensions/Lockdown" (for restict the users for the particular pages) option.

please can you suggest me any other Version which is supports the "extensions/Lockdown" option

Thank you

Hi, could you explain what makes you think that none of the supported versions support the Lockdown extension and/or what the underlying problem is?

Hello Team,

Can I get Proper steps to install proton in my RHEL-7 with PHP 7.4.

I have seen it in Wikimedia page and same I want to install in my application.

Thanks

Akki S.

Proton has some links.

Google Chrome is broken - please report this to Google Chrome

On this site: https://de.wikipedia.org/wiki/Determinante#Laplacescher_Entwicklungssatz there are two formulas, which should both have a minus sign before the 1. But in the first equation the minus sign is not visible.

Bug happens in current version of Google Chrome on Windows 10

Google Chrome is broken, as you can see when looking at the page source. Please report this to Google Chrome so Google can fix Chrome. Thanks.

I'm not disagreeing with you, but it would be good to know what's up here. The same mathematical notation is on https://en.wikipedia.org/wiki/User:Jonathan3/sandbox and https://de.wikipedia.org/wiki/Benutzer:Jonathan3/sandbox - they display fine on English Wikipedia but not German.

They display both correct in en and de here, and certain Chrome zoom levels are broken in Chrome.

How odd. You're right about the zoom levels. The minus sign just appears and disappears. I guess whoever deals with the <math> tag might be in a better position to report this to Chrome than 2A02:810D:95BF:E340:D17B:2F06:31D7:FE6B :-)

I found a work around (don't know if it will work for anyone).

Try to view the site with 110%

It's a strange one. It might break at 120% and work again at 130% (or whatever). You wouldn't necessarily know it was wrong at any particular zoom.

I confirm the bug in my wiki with Windows 10 and Chrome Version 87.0.4280.141.

The bug appears in a high resolution monitor (2560 px x 1440 px) when I zoom to levels <= 67%. Going larger (> 100%) does not reproduce the problem.

The bug does not reproduce in Linux nor Android 10 (mobile and desktop views). Both Linux and Android Versions are 87.0.4280.141.

I have requested assistance in the Math Extension Talk page: Google Chrome bug causes incorrect formula display

Hello, i moved my wiki from Debian to Windows. I use XAMPP (php 7.4) and i had the folder (named wiki) containing the file system of the wiki on xampp/htdocs. I also removed the folder of 2 extension (and their localsetting line) that gived a warning.

When i write localhost/wiki it gives the following error:

MediaWiki internal error.

Original exception: [cedf8c6d6bc85e98eb987394] /wiki/ Wikimedia\Rdbms\DBConnectionError from line 1380 of C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php: Cannot access the database: Unknown error (127.0.0.1) Backtrace:

1. 0 C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(931): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
2. 1 C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(898): Wikimedia\Rdbms\LoadBalancer->getServerConnection(integer, string, integer)
3. 2 C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(1043): Wikimedia\Rdbms\LoadBalancer->getConnection(integer, array, string, integer)
4. 3 C:\xampp1\htdocs\wiki\includes\GlobalFunctions.php(2576): Wikimedia\Rdbms\LoadBalancer->getMaintenanceConnectionRef(integer, array, string)
5. 4 C:\xampp1\htdocs\wiki\includes\cache\localisation\LCStoreDB.php(56): wfGetDB(integer)
6. 5 C:\xampp1\htdocs\wiki\includes\cache\localisation\LocalisationCache.php(441): LCStoreDB->get(string, string)
7. 6 C:\xampp1\htdocs\wiki\includes\cache\localisation\LocalisationCache.php(487): LocalisationCache->isExpired(string)
8. 7 C:\xampp1\htdocs\wiki\includes\cache\localisation\LocalisationCache.php(363): LocalisationCache->initLanguage(string)
9. 8 C:\xampp1\htdocs\wiki\includes\cache\localisation\LocalisationCache.php(304): LocalisationCache->loadItem(string, string)
10. 9 C:\xampp1\htdocs\wiki\languages\Language.php(4413): LocalisationCache->getItem(string, string)
11. 10 C:\xampp1\htdocs\wiki\languages\Language.php(265): Language::getFallbacksFor(string)
12. 11 C:\xampp1\htdocs\wiki\languages\Language.php(225): Language::newFromCode(string)
13. 12 C:\xampp1\htdocs\wiki\includes\ServiceWiring.php(163): Language::factory(string)
14. 13 C:\xampp1\htdocs\wiki\includes\libs\services\ServiceContainer.php(458): Wikimedia\Services\ServiceContainer->{closure}(MediaWiki\MediaWikiServices)
15. 14 C:\xampp1\htdocs\wiki\includes\libs\services\ServiceContainer.php(427): Wikimedia\Services\ServiceContainer->createService(string)
16. 15 C:\xampp1\htdocs\wiki\includes\MediaWikiServices.php(540): Wikimedia\Services\ServiceContainer->getService(string)
17. 16 C:\xampp1\htdocs\wiki\includes\Setup.php(801): MediaWiki\MediaWikiServices->getContentLanguage()
18. 17 C:\xampp1\htdocs\wiki\includes\WebStart.php(81): require_once(string)
19. 18 C:\xampp1\htdocs\wiki\index.php(41): require(string)
20. 19 {main}

Exception caught inside exception handler: [cedf8c6d6bc85e98eb987394] /wiki/ Wikimedia\Rdbms\DBConnectionError from line 1380 of C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php: Cannot access the database: Unknown error (127.0.0.1) Backtrace:

1. 0 C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(931): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
2. 1 C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(898): Wikimedia\Rdbms\LoadBalancer->getServerConnection(integer, string, integer)
3. 2 C:\xampp1\htdocs\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(1043): Wikimedia\Rdbms\LoadBalancer->getConnection(integer, array, string, integer)
4. 3 C:\xampp1\htdocs\wiki\includes\GlobalFunctions.php(2576): Wikimedia\Rdbms\LoadBalancer->getMaintenanceConnectionRef(integer, array, string)
5. 4 C:\xampp1\htdocs\wiki\includes\cache\localisation\LCStoreDB.php(56): wfGetDB(integer)
6. 5 C:\xampp1\htdocs\wiki\includes\cache\localisation\LocalisationCache.php(386): LCStoreDB->get(string, string)
7. 6 C:\xampp1\htdocs\wiki\includes\cache\localisation\LocalisationCache.php(304): LocalisationCache->loadItem(string, string)
8. 7 C:\xampp1\htdocs\wiki\languages\Language.php(4413): LocalisationCache->getItem(string, string)
9. 8 C:\xampp1\htdocs\wiki\languages\Language.php(265): Language::getFallbacksFor(string)
10. 9 C:\xampp1\htdocs\wiki\languages\Language.php(225): Language::newFromCode(string)
11. 10 C:\xampp1\htdocs\wiki\includes\ServiceWiring.php(163): Language::factory(string)
12. 11 C:\xampp1\htdocs\wiki\includes\libs\services\ServiceContainer.php(458): Wikimedia\Services\ServiceContainer->{closure}(MediaWiki\MediaWikiServices)
13. 12 C:\xampp1\htdocs\wiki\includes\libs\services\ServiceContainer.php(427): Wikimedia\Services\ServiceContainer->createService(string)
14. 13 C:\xampp1\htdocs\wiki\includes\MediaWikiServices.php(540): Wikimedia\Services\ServiceContainer->getService(string)
15. 14 C:\xampp1\htdocs\wiki\includes\ServiceWiring.php(440): MediaWiki\MediaWikiServices->getContentLanguage()
16. 15 C:\xampp1\htdocs\wiki\includes\libs\services\ServiceContainer.php(458): Wikimedia\Services\ServiceContainer->{closure}(MediaWiki\MediaWikiServices)
17. 16 C:\xampp1\htdocs\wiki\includes\libs\services\ServiceContainer.php(427): Wikimedia\Services\ServiceContainer->createService(string)
18. 17 C:\xampp1\htdocs\wiki\includes\MediaWikiServices.php(738): Wikimedia\Services\ServiceContainer->getService(string)
19. 18 C:\xampp1\htdocs\wiki\includes\cache\MessageCache.php(115): MediaWiki\MediaWikiServices->getMessageCache()
20. 19 C:\xampp1\htdocs\wiki\includes\exception\MWExceptionRenderer.php(310): MessageCache::singleton()
21. 20 C:\xampp1\htdocs\wiki\includes\exception\MWExceptionRenderer.php(51): MWExceptionRenderer::reportOutageHTML(Wikimedia\Rdbms\DBConnectionError)
22. 21 C:\xampp1\htdocs\wiki\includes\exception\MWExceptionHandler.php(121): MWExceptionRenderer::output(Wikimedia\Rdbms\DBConnectionError, integer)
23. 22 C:\xampp1\htdocs\wiki\includes\exception\MWExceptionHandler.php(195): MWExceptionHandler::report(Wikimedia\Rdbms\DBConnectionError)
24. 23 C:\xampp1\htdocs\wiki\includes\exception\MWExceptionHandler.php(167): MWExceptionHandler::handleException(Wikimedia\Rdbms\DBConnectionError)
25. 24 [internal function]: MWExceptionHandler::handleUncaughtException(Wikimedia\Rdbms\DBConnectionError)
26. 25 {main}

This is the error: Cannot access the database: Unknown error (127.0.0.1)

Review the database connection settings, check if they are correct. Try to connect to mysql using the database credentials stored in LocalSettings.php through phpmyadmin or a local mysql client

Yes thank you, it was easier than i expected.

Now the wiki work but this message stay on top of every page:

"Warning: array_key_exists() expects parameter 2 to be array, null given inC:\xampp1\htdocs\wiki\extensions\Iframe\Iframe_body.phpon line136"

And this that stay on top of the homepage:

"Notice: Trying to access array offset on value of type bool inC:\xampp1\htdocs\wiki\extensions\SemanticMediaWiki\includes\dataitems\SMW_DI_Property.phpon line508"

And also when i search a page named "Camponotus vagus" it gives to me this error

"[7cd620d1cfe1c7b70b38f41f] /wiki/index.php/Camponotus_vagus Wikimedia\Rdbms\DBReadOnlyError from line 975 of C:\xampp1\htdocs\wiki\includes\libs\rdbms\database\Database.php: Database is read-only: Dumping Database, Access will be restored shortly"

The DBuser have all privileges on the database

The first warning may be that the Iframe extension is not compatible. However, a warning is not an error, and the extension may work just fine. You probably want to turn off the display of warnings and notices

https://stackoverflow.com/questions/28736293/how-to-disable-warnings-and-notices-by-php-ini

But where i must add that php code?

If you use the function error_reporting(0); put that in LocalSettings.php

You can edit php.ini and set display_errors = Off to turn off any error reporting (it's recommended to set it to log file instead)

Thank you very much for the help!

The "Database is read-only: Dumping Database, Access will be restored shortly" seems pretty self explanatory.

You probably set the database to readonly, or even set the site to readonly in LocalSettings.php

I didn't expect that, i don't remember that line on LocalSetting.php :/

when editing Project:Sandbox (in the wikitext editor), a warning appears at the top of the edit window, which says: "WARNING: This page is 79 bytes long; consider shortening it to better serve readers."

This is a bug. Tracked phab:T272028

hey everyone , I am working on scrapping wikipedia pages I am easily able to fetch html content and fetch all resource mentioned in script tag in this html but when I try to view those page I am getting error undefined function me.hook I have scrapped startup script which consist of most of the things related to mw object but mw.hook is not present there I found out mw.hook is defined in wikimedia.base.js but I can't seem to understand how it is being fetched like have a look at this article -> https://ru.wikipedia.org/wiki/%D0%A2%D0%B0%D1%80%D0%B0%D0%BD%D1%82%D0%B8%D0%BD%D0%BE,_%D0%9A%D0%B2%D0%B5%D0%BD%D1%82%D0%B8%D0%BD#%D0%A0%D0%B5%D0%B6%D0%B8%D1%81%D1%81%D1%91%D1%80%D1%81%D0%BA%D0%B8%D0%B9_%D0%BF%D0%BE%D1%87%D0%B5%D1%80%D0%BA

looking at the sources I could find only 2 scripts(I successfuly loaded those 2) and startup script has mention of baseModule wikimedia.base.js but how is it fetching it exactly and one more thing are these base modules (wikimedia.base.js and jquery) required in all mediawiki pages and should I scrape them always If I am trying to scrape any mediawiki file?

P.S. -> sorry if wrong place ,new here

ResourceLoader has some background info.

Modules are loaded dynamically, sometimes from LocalStorage based cache.

After a mediawiki update to 1.35.1, running the update script as well as the composer update, it seems oojs-ui is not being created - any hints to what might be the reason for that?

 2021-01-11 21:42:08 ip- wiki: Generating module package failed: [Exception MWException( /var/www/html/includes/resourceloader/ResourceLoaderImage.php:243) File '/var/www/html/resources/lib/oojs-ui/themes/wikimediaui/images/icons/logo-CC.svg' does not exist]
 #0 /var/www/html/includes/resourceloader/ResourceLoaderImage.php(213): ResourceLoaderImage->getImageData(ResourceLoaderContext, NULL, string)
 #1 /var/www/html/includes/resourceloader/ResourceLoaderImageModule.php(362): ResourceLoaderImage->getDataUri(ResourceLoaderContext, NULL, string)
 #2 /var/www/html/includes/resourceloader/ResourceLoaderImageModule.php(320): ResourceLoaderImageModule->getStyleDeclarations(ResourceLoaderContext, ResourceLoaderImage, string)
 #3 /var/www/html/includes/resourceloader/ResourceLoaderModule.php(729): ResourceLoaderImageModule->getStyles(ResourceLoaderContext)
 #4 /var/www/html/includes/resourceloader/ResourceLoaderModule.php(674): ResourceLoaderModule->buildContent(ResourceLoaderContext)
 #5 /var/www/html/includes/resourceloader/ResourceLoader.php(1078): ResourceLoaderModule->getModuleContent(ResourceLoaderContext)
 #6 /var/www/html/includes/resourceloader/ResourceLoader.php(782): ResourceLoader->makeModuleResponse(ResourceLoaderContext, array, array)
 #7 /var/www/html/load.php(51): ResourceLoader->respond(ResourceLoaderContext)
 #8 {main}

how did you update mediawiki?

Thanks! THese are the steps I had noted from the last time:

• replaced all files from my wiki with the extracted files from the mediawiki tar.gz.
• added in all extensions
• run composer update --no-dev
• run php maintenance/update.php

mediawiki tar.gz file should contain oojs and anything else needed by mediawiki (composer update only needed if an extension needs it or you obtained mw via git).

I would check to see if the file was in the tarball you used