Error by Calling Spezial:SemanticMediaWiki&action=lookup #6271
Description
Setup
- SMW version: 6.0.1 (448a112) 21:49, 25. Aug. 2025
- MW version: 1.44.2
- PHP version: 8.1.33 (apache2handler)
- DB system (MySQL, Blazegraph, etc.) and version: mysql (12.1.2-MariaDB-ubu2404)
Issue
Detailed description of the issue and a stack trace if applicable:
calling: https://wiki.domain.de/index.php?title=Spezial:SemanticMediaWiki&action=lookup
408c14e900c2c9030767efa6] /index.php?title=Spezial:SemanticMediaWiki&action=lookup TypeError: MediaWiki\Parser\Sanitizer::encodeAttribute(): Argument
#1 ($text) must be of type string, null given, called in /var/www/html/includes/xml/Xml.php on line 85 Backtrace: from /var/www/html/includes/parser/Sanitizer.php(805)
#0 /var/www/html/includes/xml/Xml.php(85): MediaWiki\Parser\Sanitizer::encodeAttribute(null)
#1 /var/www/html/includes/xml/Xml.php(59): MediaWiki\Xml\Xml::expandAttributes(array)
#2 /var/www/html/includes/xml/Xml.php(322): MediaWiki\Xml\Xml::element(string, array)
#3 /var/www/html/extensions/SemanticMediaWiki/src/MediaWiki/Renderer/HtmlFormRenderer.php(313): MediaWiki\Xml\Xml::input(string, int, null, array)
#4 /var/www/html/extensions/SemanticMediaWiki/src/MediaWiki/Specials/Admin/Supplement/EntityLookupTaskHandler.php(178): SMW\MediaWiki\Renderer\HtmlFormRenderer->addInputField(string, string, null)
#5 /var/www/html/extensions/SemanticMediaWiki/src/MediaWiki/Specials/Admin/Supplement/EntityLookupTaskHandler.php(142): SMW\MediaWiki\Specials\Admin\Supplement\EntityLookupTaskHandler->getForm(MediaWiki\Request\WebRequest, null)
#6 /var/www/html/extensions/SemanticMediaWiki/src/MediaWiki/Specials/Admin/SupplementTaskHandler.php(107): SMW\MediaWiki\Specials\Admin\Supplement\EntityLookupTaskHandler->handleRequest(MediaWiki\Request\WebRequest)
#7 /var/www/html/extensions/SemanticMediaWiki/src/MediaWiki/Specials/SpecialAdmin.php(120): SMW\MediaWiki\Specials\Admin\SupplementTaskHandler->handleRequest(MediaWiki\Request\WebRequest)
#8 /var/www/html/includes/SpecialPage.php(734): SMW\MediaWiki\Specials\SpecialAdmin->execute(null)
#9 /var/www/html/includes/specialpage/SpecialPageFactory.php(1731): MediaWiki\SpecialPage\SpecialPage->run(null)
#10 /var/www/html/includes/actions/ActionEntryPoint.php(499): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, MediaWiki\Context\RequestContext)
#11 /var/www/html/includes/actions/ActionEntryPoint.php(143): MediaWiki\Actions\ActionEntryPoint->performRequest()
#12 /var/www/html/includes/MediaWikiEntryPoint.php(202): MediaWiki\Actions\ActionEntryPoint->execute()
#13 /var/www/html/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#14 {main}
Steps to reproduce the observation (recommendation is to use the sandbox):
calling: https://wiki.domain.de/index.php?title=Spezial:SemanticMediaWiki&action=lookup