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May avatar Drupal

User error: "1" is an invalid render array key. How do I find where the error is coming from?

zw flag
May

I get this error on every page. How do I debug or find what is causing it?

I thought it might have been changes to a twig template, but I tried other themes, and still had the error.

I've disabled all custom modules.

I searched and found User error: "1" is an invalid render array key in Drupal\Core\Render\Element::children() Which suggests its custom theming related but I am using core theme without any changes to the code.

User error: "1" is an invalid render array key in Drupal\Core\Render\Element::children() (line 98 of core\lib\Drupal\Core\Render\Element.php).
Drupal\Core\Render\Element::children(Array, 1) (Line: 393)
Drupal\Core\Render\Renderer->doRender(Array) (Line: 435)
Drupal\Core\Render\Renderer->doRender(Array) (Line: 435)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 201)
Drupal\Core\Render\Renderer->render(Array) (Line: 479)
Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 90)
__TwigTemplate_5c9e4beab1e145186c53285963d726c00acecd8f392e4d019b6f41f835d1e619->doDisplay(Array, Array) (Line: 405)
Twig\Template->displayWithErrorHandling(Array, Array) (Line: 378)
Twig\Template->display(Array) (Line: 390)
Twig\Template->render(Array) (Line: 55)
twig_render_template('core/themes/seven/templates/classy/layout/html.html.twig', Array) (Line: 384)
Drupal\Core\Theme\ThemeManager->render('html', Array) (Line: 422)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 201)
Drupal\Core\Render\Renderer->render(Array) (Line: 162)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 564)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 163)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object)
call_user_func(Array, Object, 'kernel.view', Object) (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.view') (Line: 163)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 80)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 708)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

I'm not sure if it happened after I ran composer update, could this be a contributed module which was updated that is causing this?

How can I find out more information to debug where it is coming from?

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sanzante avatar
ph flag
sanzante
Probably some code is messing with a Render Array. If you have uninstalled all custom code (modules, themes and profiles), try uninstalling custom code until you get rid of the code, then you'll know who is responsible for the error. Or you can You can try XDebug to debug the code, place a breakpoint in the error and go up in the callstack until you see something meaningful, but if you haven't done before it's going to be hard (although it is an incredible tool, you should try it)
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