DOMDocument::loadXML(): Argument #1 ($source) must not be empty

$config['search_api.server.mysolr_server'] = [ 'backend_config' => [ 'connector_config' => [ 'host' => 'myserver.com', 'path' => '/', 'core' => 'mycore', 'port' => '8983', ], ], ];

Message ValueError: DOMDocument::loadXML(): Argument #1 ($source) must not be empty in DOMDocument->loadXML() (line 1118 of /newdrive/newhtml/itp1/web/modules/contrib/search_api_solr/src/Utility/Utility.php) #0 /newdrive/newhtml/itp1/web/modules/contrib/search_api_solr/src/Utility/Utility.php(1118): DOMDocument->loadXML() #1 /newdrive/newhtml/itp1/web/modules/contrib/search_api_solr/search_api_solr.install(117): Drupal\search_api_solr\Utility\Utility::normalizeXml() #2 /newdrive/newhtml/itp1/web/modules/contrib/search_api_solr/search_api_solr.module(30): search_api_solr_requirements() #3 /newdrive/newhtml/itp1/web/core/modules/help/src/Plugin/Block/HelpBlock.php(97): search_api_solr_help() #4 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(405): Drupal\help\Plugin\Block\HelpBlock->Drupal\help\Plugin\Block\{closure}() #5 /newdrive/newhtml/itp1/web/core/modules/help/src/Plugin/Block/HelpBlock.php(102): Drupal\Core\Extension\ModuleHandler->invokeAllWith() #6 /newdrive/newhtml/itp1/web/core/modules/block/src/BlockViewBuilder.php(171): Drupal\help\Plugin\Block\HelpBlock->build() #7 [internal function]: Drupal\block\BlockViewBuilder::preRender() #8 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Security/DoTrustedCallbackTrait.php(101): call_user_func_array() #9 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(788): Drupal\Core\Render\Renderer->doTrustedCallback() #10 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(374): Drupal\Core\Render\Renderer->doCallback() #11 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(446): Drupal\Core\Render\Renderer->doRender() #12 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(204): Drupal\Core\Render\Renderer->doRender() #13 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Template/TwigExtension.php(479): Drupal\Core\Render\Renderer->render() #14 /newdrive/newhtml/itp1/web/sites/default/files/php/twig/64e3ad8396eef_page.html.twig_yqHbvHSqxNlxstBYiTvJMCA1I/Z9AOT2iw8H-pPWSOokOZ4Cu_dcAXzD-RQb94V0bYGqs.php(70): Drupal\Core\Template\TwigExtension->escapeFilter() #15 /newdrive/newhtml/itp1/vendor/twig/twig/src/Template.php(405): __TwigTemplate_6edef700ecd0934f1c4f9b7c2028c545->doDisplay() #16 /newdrive/newhtml/itp1/vendor/twig/twig/src/Template.php(378): Twig\Template->displayWithErrorHandling() #17 /newdrive/newhtml/itp1/vendor/twig/twig/src/Template.php(390): Twig\Template->display() #18 /newdrive/newhtml/itp1/web/core/themes/engines/twig/twig.engine(55): Twig\Template->render() #19 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Theme/ThemeManager.php(384): twig_render_template() #20 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(433): Drupal\Core\Theme\ThemeManager->render() #21 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(204): Drupal\Core\Render\Renderer->doRender() #22 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Template/TwigExtension.php(479): Drupal\Core\Render\Renderer->render() #23 /newdrive/newhtml/itp1/web/sites/default/files/php/twig/64e3ad8396eef_html.html.twig_M17VSIn9TbaQau_rid8J3G53a/wU3j6cnnDBQrjoODq7gtN4HRxt6FgSUyh-lcEU249kc.php(86): Drupal\Core\Template\TwigExtension->escapeFilter() #24 /newdrive/newhtml/itp1/vendor/twig/twig/src/Template.php(405): __TwigTemplate_ba25c4a267e9c702c59f07ad6ebe8640->doDisplay() #25 /newdrive/newhtml/itp1/vendor/twig/twig/src/Template.php(378): Twig\Template->displayWithErrorHandling() #26 /newdrive/newhtml/itp1/vendor/twig/twig/src/Template.php(390): Twig\Template->display() #27 /newdrive/newhtml/itp1/web/core/themes/engines/twig/twig.engine(55): Twig\Template->render() #28 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Theme/ThemeManager.php(384): twig_render_template() #29 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(433): Drupal\Core\Theme\ThemeManager->render() #30 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(204): Drupal\Core\Render\Renderer->doRender() #31 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(162): Drupal\Core\Render\Renderer->render() #32 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/Renderer.php(580): Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() #33 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(163): Drupal\Core\Render\Renderer->executeInRenderContext() #34 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/EventSubscriber/MainContentViewSubscriber.php(90): Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() #35 [internal function]: Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray() #36 /newdrive/newhtml/itp1/web/core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(142): call_user_func() #37 /newdrive/newhtml/itp1/vendor/symfony/http-kernel/HttpKernel.php(174): Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() #38 /newdrive/newhtml/itp1/vendor/symfony/http-kernel/HttpKernel.php(81): Symfony\Component\HttpKernel\HttpKernel->handleRaw() #39 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle() #40 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle() #41 /newdrive/newhtml/itp1/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle() #42 /newdrive/newhtml/itp1/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass() #43 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\page_cache\StackMiddleware\PageCache->handle() #44 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() #45 /newdrive/newhtml/itp1/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() #46 /newdrive/newhtml/itp1/web/core/lib/Drupal/Core/DrupalKernel.php(718): Stack\StackedHttpKernel->handle() #47 /newdrive/newhtml/itp1/web/index.php(19): Drupal\Core\DrupalKernel->handle() #48 {main}

Comments & Activities

Issue created by @leisurman

Comment 10 months ago →

🇮🇳India dineshkumarbollu

Change the lines from

if (@$document->loadXML($xml) === FALSE) {
        $document->loadXML("<root>$xml</root>");
      }

if (!empty($xml) && @$document->loadXML($xml) === FALSE) {
        $document->loadXML("<root>$xml</root>");
      }

Unable to create patch because of 4.1.10 branch not in Git.

Comment 10 months ago →
🇺🇸United States leisurman
@dineshkumarbollu. Thank you. That worked.
Comment 10 months ago →
🇮🇳India dineshkumarbollu
Hi @ leisurman

can you create patch for this i am unable to create patch in 4.1.10 branch, currently the branch is not available on Git.
Comment 10 months ago →
🇮🇳India Mohd Sahzad
I have created patch for this issue DOMDocument::loadXML(): Argument #1 ($source) must not be empty
Status changed to Needs review 10 months ago10:52am 23 August 2023
Open in Jenkins → Open on Drupal.org →
Core: 9.5.x + Environment: PHP 8.0 & MySQL 5.7
last update 10 months ago
31 pass
Comment 10 months ago →
🇮🇳India keshav.k
Comment 10 months ago →
🇺🇸United States leisurman
I saw your message too late, Thank you @keshavv
Status changed to Closed: duplicate 10 months ago8:05am 30 August 2023
Comment 10 months ago →
🇩🇪Germany mkalkbrenner 🇩🇪
The Bug has been fixed more than two years ago:
#3188815: Empty XML config files cause crash in PHP 8 →

4.1.x is not supported anymore. You should update the module!