EasyRdf\Parser\Exception: XML error: "XML_WAR_NS_URI" on line 76, column 11

[kghbln]

Setup

• MediaWiki 1.39.12 (8d23b78) 06:36, 15. Apr. 2025
• PHP 8.1.2-1ubuntu2.21 (apache2handler)
• MariaDB 10.6.21-MariaDB-0ubuntu0.22.04.2
• Semantic Meta Tags 4.0.0-beta

Issue

Original exception: [2caff90329db3324b65ec569] /Hauptseite EasyRdf\Parser\Exception: XML error: "XML_WAR_NS_URI" on line 76, column 11

Backtrace:

from /../w/vendor/easyrdf/easyrdf/lib/Parser/RdfXml.php(811)
#0 /../w/vendor/easyrdf/easyrdf/lib/Graph.php(245): EasyRdf\Parser\RdfXml->parse()
#1 /../w/vendor/easyrdf/easyrdf/lib/Graph.php(370): EasyRdf\Graph->parse()
#2 /../w/extensions/SemanticMetaTags/src/JsonLDSerializer.php(59): EasyRdf\Graph->load()
#3 /../w/extensions/SemanticMetaTags/src/JsonLDSerializer.php(22): SMT\JsonLDSerializer::setJsonLD()
#4 /../w/extensions/SemanticMetaTags/src/HookRegistry.php(66): SMT\JsonLDSerializer->__construct()
#5 /../w/includes/HookContainer/HookContainer.php(338): SMT\HookRegistry::SMT\{closure}()
#6 /../w/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook()
#7 /../w/includes/HookContainer/HookRunner.php(946): MediaWiki\HookContainer\HookContainer->run()
#8 /../w/includes/OutputPage.php(2871): MediaWiki\HookContainer\HookRunner->onBeforePageDisplay()
#9 /../w/includes/MediaWiki.php(922): OutputPage->output()
#10 /../w/includes/MediaWiki.php(562): MediaWiki->main()
#11 /../w/index.php(50): MediaWiki->run()
#12 /../w/index.php(46): wfIndexMain()
#13 {main}

Exception caught inside exception handler: [2caff90329db3324b65ec569] /Hauptseite EasyRdf\Parser\Exception: XML error: "XML_WAR_NS_URI" on line 76, column 11

Backtrace:

from /../w/vendor/easyrdf/easyrdf/lib/Parser/RdfXml.php(811)
#0 /../w/vendor/easyrdf/easyrdf/lib/Graph.php(245): EasyRdf\Parser\RdfXml->parse()
#1 /../w/vendor/easyrdf/easyrdf/lib/Graph.php(370): EasyRdf\Graph->parse()
#2 /../w/extensions/SemanticMetaTags/src/JsonLDSerializer.php(59): EasyRdf\Graph->load()
#3 /../w/extensions/SemanticMetaTags/src/JsonLDSerializer.php(22): SMT\JsonLDSerializer::setJsonLD()
#4 /../w/extensions/SemanticMetaTags/src/HookRegistry.php(66): SMT\JsonLDSerializer->__construct()
#5 /../w/includes/HookContainer/HookContainer.php(338): SMT\HookRegistry::SMT\{closure}()
#6 /../w/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook()
#7 /../w/includes/HookContainer/HookRunner.php(946): MediaWiki\HookContainer\HookContainer->run()
#8 /../w/includes/OutputPage.php(2871): MediaWiki\HookContainer\HookRunner->onBeforePageDisplay()
#9 /../w/includes/exception/MWExceptionRenderer.php(183): OutputPage->output()
#10 /../w/includes/exception/MWExceptionRenderer.php(102): MWExceptionRenderer::reportHTML()
#11 /../w/incl

[kghbln]

@thomas-topway-it The problems are bigger than expected. On a public wiki, I got a different issue from the one reported with #93.

It looks like it is time to move to https://github.com/sweetrdf/easyrdf per easyrdf/easyrdf#409 (comment), though this one is also unmaintained. I think a technical debt gets added to the repo with open eyes, and I wonder if there is not another way to add the "json magic" to the extension.

[kghbln]

FYI I reverted back to 02b2ca2 to avoid the issues reported here and in #93

[k00ni]

It looks like it is time to move to https://github.com/sweetrdf/easyrdf per easyrdf/easyrdf#409 (comment), though this one is also unmaintained

I would like to clarify one thing: sweetrdf/easyrdf is maintained, even though the commit frequency is low. My objective is to keep EasyRdf properly working on the latest PHP version (8.4 ✔️, mostly works on 8.5). Currently I don't have plans to develop it any further, but there were a few contributions from the Community in the past.

[thomas-topway-it]

@kghbln @k00ni I'm sorry this escaped me. We are about to merge this #97 -- there is a github workflow error although I think it could be merged

[gesinn-it-gea]

I still get

Original exception: [e952b597c7115ab3a294699a] /index.php/Main_Page EasyRdf\Parser\Exception: XML error: "XML_WAR_NS_URI" on line 40, column 11

on a (localhost) MW 1.39.x with SMT 4.1.1. @thomas-topway-it @kghbln is 4.1.1 working for you?

[kghbln]

• MediaWiki 1.43.6 (fe11d99) 00:19, 17. Dez. 2025
• Semantic MediaWiki 6.0.1
• Semantic Meta Tags 4.1.1

Sometimes I get this

MediaWiki internal error.

Original exception: [f1d4a1cb87b16c7626fe6c25] 2026-01-21 10:10:42: Fatal exception of type "EasyRdf\Exception"

Exception caught inside exception handler.

Regrettably, logging was not enabled, and it occurs randomly. I assume that we are talking about the same error.