Error in ViewfieldFormatterTitle->viewElements()

[p-a-s-c-a-l]

The website encountered an unexpected error. Please try again later.
Error: Call to a member function getTitle() on null in Drupal\viewfield\Plugin\Field\FieldFormatter\ViewfieldFormatterTitle->viewElements() (line 31 of modules/contrib/viewfield/src/Plugin/Field/FieldFormatter/ViewfieldFormatterTitle.php).

https://csis.myclimateservice.eu/study/182/step/5064/view/introduction

[p-a-s-c-a-l]

#0 /app/web/core/lib/Drupal/Core/Field/FormatterBase.php(89): Drupal\viewfield\Plugin\Field\FieldFormatter\ViewfieldFormatterTitle->viewElements(Object(Drupal\Core\Field\EntityReferenceFieldItemList), 'en')
#1 /app/web/core/lib/Drupal/Core/Entity/Entity/EntityViewDisplay.php(263): Drupal\Core\Field\FormatterBase->view(Object(Drupal\Core\Field\EntityReferenceFieldItemList), 'en')
#2 /app/web/core/modules/views/src/Entity/Render/EntityFieldRenderer.php(276): Drupal\Core\Entity\Entity\EntityViewDisplay->buildMultiple(Array)
#3 /app/web/core/modules/views/src/Entity/Render/EntityFieldRenderer.php(163): Drupal\views\Entity\Render\EntityFieldRenderer->buildFields(Array)
#4 /app/web/core/modules/views/src/Plugin/views/field/EntityField.php(846): Drupal\views\Entity\Render\EntityFieldRenderer->render(Object(Drupal\views\ResultRow), Object(Drupal\views\Plugin\views\field\EntityField))
#5 /app/web/core/modules/views/src/Plugin/views/field/FieldPluginBase.php(1148): Drupal\views\Plugin\views\field\EntityField->getItems(Object(Drupal\views\ResultRow))
#6 /app/web/core/modules/views/views.theme.inc(236): Drupal\views\Plugin\views\field\FieldPluginBase->advancedRender(Object(Drupal\views\ResultRow))
#7 /app/web/core/lib/Drupal/Core/Theme/ThemeManager.php(287): template_preprocess_views_view_field(Array, 'views_view_fiel...', Array)
#8 /app/web/core/lib/Drupal/Core/Render/Renderer.php(431): Drupal\Core\Theme\ThemeManager->render('views_view_fiel...', Array)
#9 /app/web/core/lib/Drupal/Core/Render/Renderer.php(200): Drupal\Core\Render\Renderer->doRender(Array, false)
#10 /app/web/core/modules/views/src/Plugin/views/field/FieldPluginBase.php(1747): Drupal\Core\Render\Renderer->render(Array)
#11 /app/web/core/modules/views/src/Plugin/views/style/StylePluginBase.php(770): Drupal\views\Plugin\views\field\FieldPluginBase->theme(Object(Drupal\views\ResultRow))
#12 [internal function]: Drupal\views\Plugin\views\style\StylePluginBase->elementPreRenderRow(Array)
#13 /app/web/core/lib/Drupal/Core/Security/DoTrustedCallbackTrait.php(100): call_user_func_array(Array, Array)
#14 /app/web/core/lib/Drupal/Core/Render/Renderer.php(781): Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_ren...', 'silenced_deprec...', 'Drupal\\Core\\Ren...')
#15 /app/web/core/lib/Drupal/Core/Render/Renderer.php(372): Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array)
#16 /app/web/core/lib/Drupal/Core/Render/Renderer.php(200): Drupal\Core\Render\Renderer->doRender(Array, false)
#17 /app/web/core/modules/views/src/Plugin/views/style/StylePluginBase.php(709): Drupal\Core\Render\Renderer->render(Array)
#18 /app/web/core/modules/views/src/Plugin/views/style/StylePluginBase.php(576): Drupal\views\Plugin\views\style\StylePluginBase->renderFields(Array)
#19 /app/web/core/modules/views/src/Plugin/views/style/StylePluginBase.php(468): Drupal\views\Plugin\views\style\StylePluginBase->renderGrouping(Array, Array, true)
#20 /app/web/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php(2138): Drupal\views\Plugin\views\style\StylePluginBase->render(Array)
#21 /app/web/core/modules/views/src/ViewExecutable.php(1533): Drupal\views\Plugin\views\display\DisplayPluginBase->render()
#22 /app/web/core/modules/views/src/Plugin/views/display/Block.php(138): Drupal\views\ViewExecutable->render()
#23 /app/web/core/modules/views/src/ViewExecutable.php(1630): Drupal\views\Plugin\views\display\Block->execute()
#24 /app/web/core/modules/views/src/Element/View.php(77): Drupal\views\ViewExecutable->executeDisplay('block_1', Array)
#25 /app/web/core/modules/views/src/Plugin/Block/ViewsBlock.php(59): Drupal\views\Element\View::preRenderViewElement(Array)
#26 /app/web/core/modules/block/src/BlockViewBuilder.php(171): Drupal\views\Plugin\Block\ViewsBlock->build()
#27 [internal function]: Drupal\block\BlockViewBuilder::preRender(Array)
#28 /app/web/core/lib/Drupal/Core/Security/DoTrustedCallbackTrait.php(100): call_user_func_array(Array, Array)
#29 /app/web/core/lib/Drupal/Core/Render/Renderer.php(781): Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_ren...', 'silenced_deprec...', 'Drupal\\Core\\Ren...')
#30 /app/web/core/lib/Drupal/Core/Render/Renderer.php(372): Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array)
#31 /app/web/core/lib/Drupal/Core/Render/Renderer.php(444): Drupal\Core\Render\Renderer->doRender(Array)
#32 /app/web/core/lib/Drupal/Core/Render/Renderer.php(200): Drupal\Core\Render\Renderer->doRender(Array, false)
#33 /app/web/core/lib/Drupal/Core/Template/TwigExtension.php(501): Drupal\Core\Render\Renderer->render(Array)
#34 /app/web/sites/default/files/php/twig/5f05d4153e124_page.html.twig_tqVxPI0uYUGwGCr-t6Czb7mjK/xqk1S7XStFGDr8FCsx5C-2fr6JG9hI-lkNTBHR93bF0.php(100): Drupal\Core\Template\TwigExtension->escapeFilter(Object(Drupal\Core\Template\TwigEnvironment), Array, 'html', NULL, true)
#35 /app/vendor/twig/twig/src/Template.php(455): __TwigTemplate_f15afe0a41e6ab9e58e1f303945c1825413a5aa20f960cdb080debbd014f8f1c->doDisplay(Array, Array)
#36 /app/vendor/twig/twig/src/Template.php(422): Twig\Template->displayWithErrorHandling(Array, Array)
#37 /app/vendor/twig/twig/src/Template.php(434): Twig\Template->display(Array)
#38 /app/web/core/themes/engines/twig/twig.engine(64): Twig\Template->render(Array)
#39 /app/web/core/lib/Drupal/Core/Theme/ThemeManager.php(384): twig_render_template('themes/custom/c...', Array)
#40 /app/web/core/lib/Drupal/Core/Render/Renderer.php(431): Drupal\Core\Theme\ThemeManager->render('page', Array)
#41 /app/web/core/lib/Drupal/Core/Render/Renderer.php(200): Drupal\Core\Render\Renderer->doRender(Array, false)
#42 /app/web/core/lib/Drupal/Core/Template/TwigExtension.php(501): Drupal\Core\Render\Renderer->render(Array)
#43 /app/web/sites/default/files/php/twig/5f05d4153e124_html.html.twig_q_crBVyej8CwNTVAGunx_CeRg/kdx3xecLKIcz7cDyi4IjpRnkZlhcJcZ_Q9cHLpoPvBA.php(105): Drupal\Core\Template\TwigExtension->escapeFilter(Object(Drupal\Core\Template\TwigEnvironment), Array, 'html', NULL, true)
#44 /app/vendor/twig/twig/src/Template.php(455): __TwigTemplate_88d1544f2c87c825de58747ed0b62e90f9d695557b195b56462fd470d598cc20->doDisplay(Array, Array)
#45 /app/vendor/twig/twig/src/Template.php(422): Twig\Template->displayWithErrorHandling(Array, Array)
#46 /app/vendor/twig/twig/src/Template.php(434): Twig\Template->display(Array)
#47 /app/web/core/themes/engines/twig/twig.engine(64): Twig\Template->render(Array)
#48 /app/web/core/lib/Drupal/Core/Theme/ThemeManager.php(384): twig_render_template('themes/custom/c...', Array)
#49 /app/web/core/lib/Drupal/Core/Render/Renderer.php(431): Drupal\Core\Theme\ThemeManager->render('html', Array)
#50 /app/web/core/lib/Drupal/Core/Render/Renderer.php(200): Drupal\Core\Render\Renderer->doRender(Array, false)
#51 /app/web/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(147): Drupal\Core\Render\Renderer->render(Array)
#52 /app/web/core/lib/Drupal/Core/Render/Renderer.php(573): Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}()
#53 /app/web/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(148): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#54 /app/web/core/lib/Drupal/Core/EventSubscriber/MainContentViewSubscriber.php(90): Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\CurrentRouteMatch))
#55 [internal function]: Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent), 'kernel.view', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher))
#56 /app/web/core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(111): call_user_func(Array, Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent), 'kernel.view', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher))
#57 /app/vendor/symfony/http-kernel/HttpKernel.php(156): Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent))
#58 /app/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#59 /app/web/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#60 /app/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#61 /app/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#62 /app/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#63 /app/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#64 /app/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#65 /app/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#66 /app/web/core/lib/Drupal/Core/DrupalKernel.php(708): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#67 /app/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#68 {main}

[p-a-s-c-a-l]

I've edited the respective node directly, saved it and reloaded the page and now it's working. Any idea what's going on?

[fabrisj]

I have encountered the issue in a different section again:

for
https://csis.myclimateservice.eu/study/182/step/5066/view/introduction
https://csis.myclimateservice.eu/study/182/step/5067/view/introduction

[p-a-s-c-a-l]

@fabrisj perhaps you can address @DenoBeno directly, he may not be receive a notification from GitHub. Also regarding this problem.

[patrickkaleta]

@fgeyer16 and I found the problem and solved it for now.

Cause:
Last week's content synchronization for the GL-templates had an error: Templates without an field_view_twins field (fieldtype: Viewfield) were assigned a missing Viewfield on PROD, which caused the error. This means that all Studies created after last Monday (4 in total) can produce this error.

Solution for now:
On PROD I re-saved all the problematic GL-templates on PROD, so new Studies should not run into this error anymore. For the 4 existing Studies I re-saved all the problematic GL-steps and now these Studies are working again as well.

ToDo:
Before the next synchronization, I will have to adapt the respective migration file for the GL-templates adding this subprocess.

[patrickkaleta]

Completed in #162