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Warnings: foreach() argument must be of type array|object, string given in Drupal\Core\Template\Attribute->__construct() (line 85 of core/lib/Drupal/Core/Template/Attribute.php).

Open on Drupal.org →
Created on 12 September 2024, 6 months ago
Updated 13 September 2024, 6 months ago

Problem/Motivation

Since updating to 8.x-1.9, we've observed many warnings similar to this:

Warning: foreach() argument must be of type array|object, string given in Drupal\Core\Template\Attribute->__construct() (line 85 of core/lib/Drupal/Core/Template/Attribute.php).
Drupal\Core\Template\Attribute->__construct(' focusable="false"') (Line: 324)
Drupal\Core\Theme\ThemeManager->render('twig_svg', Array) (Line: 491)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 248)
Drupal\Core\Render\Renderer->render(Array) (Line: 475)
Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 94)
__TwigTemplate_abff251e479301460c3f95297fd8352e->

Unknown macro: {closure}
() (Line: 1775)
Twig\Extension\CoreExtension::captureOutput(Object) (Line: 40)
__TwigTemplate_abff251e479301460c3f95297fd8352e->doDisplay(Array, Array) (Line: 360)
Twig\Template->yield(Array) (Line: 335)
Twig\Template->render(Array) (Line: 38)
Twig\TemplateWrapper->render(Array) (Line: 33)
twig_render_template('themes/custom/mycustomtheme/templates/misc/flag.html.twig', Array) (Line: 348)
Drupal\Core\Theme\ThemeManager->render('flag', Array) (Line: 491)
Drupal\Core\Render\Renderer->doRender(Array) (Line: 504)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 248)
Drupal\Core\Render\Renderer->render(Array) (Line: 475)
Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 79)
__TwigTemplate_1b0b6d1686a1498389ae4ab8ff9ecd1b->block_content(Array, Array) (Line: 430)
Twig\Template->yieldBlock('content', Array, Array) (Line: 65)
__TwigTemplate_1b0b6d1686a1498389ae4ab8ff9ecd1b->doDisplay(Array, Array) (Line: 360)
Twig\Template->yield(Array) (Line: 335)
Twig\Template->render(Array) (Line: 38)
Twig\TemplateWrapper->render(Array) (Line: 33)
twig_render_template('core/themes/stable9/templates/block/block.html.twig', Array) (Line: 348)
Drupal\Core\Theme\ThemeManager->render('block', Array) (Line: 491)
Drupal\Core\Render\Renderer->doRender(Array, 1) (Line: 248)
Drupal\Core\Render\Renderer->render(Array, 1) (Line: 165)
Drupal\Core\Render\Renderer->Drupal\Core\Render{closure}() (Line: 638)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 164)
Drupal\Core\Render\Renderer->renderInIsolation(Array) (Line: 191)
Drupal\Core\Render\Renderer->doRenderPlaceholder(Array) (Line: 228)
Drupal\Core\Render\Renderer->renderPlaceholder('callback=Drupal%5Cblock%5CBlockViewBuilder%3A%3AlazyBuilder&args%5B0%5D=neso_theme_flagblock&args%5B1%5D=full&args%5B2%5D&token=lyGZENngjeMSUm6nLL4kqnTsdEgN6gQuYw6_eGm9tYo', Array) (Line: 697)
Drupal\big_pipe\Render\BigPipe->renderPlaceholder('callback=Drupal%5Cblock%5CBlockViewBuilder%3A%3AlazyBuilder&args%5B0%5D=neso_theme_flagblock&args%5B1%5D=full&args%5B2%5D&token=lyGZENngjeMSUm6nLL4kqnTsdEgN6gQuYw6_eGm9tYo', Array) (Line: 524)
Drupal\big_pipe\Render\BigPipe->Drupal\big_pipe\Render{closure}()
Fiber->start() (Line: 531)
Drupal\big_pipe\Render\BigPipe->sendPlaceholders(Array, Array, Object) (Line: 283)
Drupal\big_pipe\Render\BigPipe->sendContent(Object) (Line: 113)
Drupal\big_pipe\Render\BigPipeResponse->sendContent() (Line: 423)
Symfony\Component\HttpFoundation\Response->send() (Line: 20)

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes

🐛 Bug report
Status

Fixed

Version

1.9

Component

Code

Created by

🇬🇧United Kingdom malcomio

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