the website encountered an unexpected error. Please try again later. Error: Call to a member function getItemsPerPage() on null
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3160272. -->
Reported by: [shaktik](https://www.drupal.org/user/663860)
>>>
<p>after installing the module config views page.</p>
<p>Format:(Serializer to Pager serializer) attached screenshot for views settings.</p>
<p>working fine with config language</p>
<p><a href="http://127.0.0.1:8888/api/v1/products?langcode=en">http://127.0.0.1:8888/api/v1/products?langcode=en</a><br>
<a href="http://127.0.0.1:8888/api/v1/products?langcode=fr">http://127.0.0.1:8888/api/v1/products?langcode=fr</a><br>
<a href="http://127.0.0.1:8888/api/v1/products?langcode=de">http://127.0.0.1:8888/api/v1/products?langcode=de</a><br>
<a href="http://127.0.0.1:8888/api/v1/products?langcode=All">http://127.0.0.1:8888/api/v1/products?langcode=All</a></p>
<p> if pass the wrong language than got error below.</p>
<p><a href="http://127.0.0.1:8888/api/v1/products?langcode=nl">http://127.0.0.1:8888/api/v1/products?langcode=nl</a></p>
<p>Error message</p>
<pre>The website encountered an unexpected error. Please try again later.<br>Error: Call to a member function getItemsPerPage() on null in Drupal\pager_serializer\Plugin\views\style\PagerSerializer->pagination() (line 97 of modules/contrib/pager_serializer/src/Plugin/views/style/PagerSerializer.php).<br>Drupal\pager_serializer\Plugin\views\style\PagerSerializer->pagination(Object, Array) (Line: 71)<br>Drupal\pager_serializer\Plugin\views\style\PagerSerializer->render() (Line: 432)<br>Drupal\rest\Plugin\views\display\RestExport->Drupal\rest\Plugin\views\display\{closure}() (Line: 573)<br>Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 433)<br>Drupal\rest\Plugin\views\display\RestExport->render() (Line: 1533)<br>Drupal\views\ViewExecutable->render() (Line: 423)<br>Drupal\rest\Plugin\views\display\RestExport->execute() (Line: 1630)<br>Drupal\views\ViewExecutable->executeDisplay('rest_export_1', Array) (Line: 77)<br>Drupal\views\Element\View::preRenderViewElement(Array)<br>call_user_func_array(Array, Array) (Line: 100)<br>Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_render callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. See https://www.drupal.org/node/2966725', 'exception', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 781)<br>Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array) (Line: 372)<br>Drupal\Core\Render\Renderer->doRender(Array, 1) (Line: 200)<br>Drupal\Core\Render\Renderer->render(Array, 1) (Line: 144)<br>Drupal\Core\Render\Renderer->Drupal\Core\Render\{closure}() (Line: 573)<br>Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 145)<br>Drupal\Core\Render\Renderer->renderRoot(Array) (Line: 406)<br>Drupal\rest\Plugin\views\display\RestExport::buildResponse('product_listing', 'rest_export_1', Array) (Line: 53)<br>Drupal\views\Routing\ViewPageController->handle('product_listing', 'rest_export_1', Object)<br>call_user_func_array(Array, Array) (Line: 123)<br>Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 573)<br>Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124)<br>Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)<br>Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 158)<br>Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 80)<br>Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57)<br>Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)<br>Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)<br>Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)<br>Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47)<br>Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52)<br>Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)<br>Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 705)<br>Drupal\Core\DrupalKernel->handle(Object) (Line: 19)<br>require('/D9.0.2/web/index.php') (Line: 46)</pre><p><img src="https://www.drupal.org/files/issues/2020-07-20/Screen%20Shot%202020-07-20%20at%2015.39.01.png" alt=""></p>
<p><img src="https://www.drupal.org/files/issues/2020-07-20/Screen%20Shot%202020-07-20%20at%2015.39.25.png" alt=""></p>
issue
GitLab AI Context
Project: project/pager_serializer
Instance: https://git.drupalcode.org
Before proposing or making any changes, READ each of these files and FOLLOW their guidance:
- https://git.drupalcode.org/project/pager_serializer/-/raw/8.x-1.x/README.md — project overview and setup
Repository: https://git.drupalcode.org/project/pager_serializer
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