I am creating a custom views field plugin, and I am having a huge amount of notices in the dblog that I cannot trace.

It’s a simple views field plugin that just renders some content into a custom "non-db" field on the view.

Issue #1, is that in the view, the field is listed as just ‘:’ (The field group and field name are not being displayed on the view).

Secondly, I am receiving these notices in the dblog Notice: Trying to access array offset on value of type null in DrupalviewsPluginviewsHandlerBase->adminLabel() (line 159 of /home/jfurnas/sites/lms/docroot/core/modules/views/src/Plugin/views/HandlerBase.php)

These errors only appear if I am in the views UI to manage the view. If I view the view regularly, it does not put the errors in the dblog.

I am defining the field like so, in my my_module.views.inc file

function request_system_views_data() {     $data['lms_request']['request_system_quick_edit'] = [     'title' => t('Quick Edit Request'),     'help' => t('Quick edit request details'),     'group' => 'LMS Request',     'field' => [       'title' => 'Quick Edit Request',       'id' => 'request_system_quick_edit',     ],   ]; } 

Where as ‘lms_request’ is the machine name of a custom entity in the system, and my fieldplug class is defined as below:

<?php  namespace Drupalrequest_systemPluginviewsfield;  use DrupalviewsPluginviewsfieldFieldPluginBase; use DrupalviewsResultRow;  use DrupalCoreFormFormStateInterface; use DrupalCoreUrl;  /**  * Provides Quick Edit field handler.  *  * @ViewsField("request_system_quick_edit")  *  * @DCG  * The plugin needs to be assigned to a specific table column through  * hook_views_data() or hook_views_data_alter().  * For non-existent columns (i.e. computed fields) you need to override  * self::query() method.  */ class QuickEdit extends FieldPluginBase {     /**    * {@inheritdoc}    */   public function query() {     return [];   }    // /**   //  * {@inheritdoc}   //  */   public function defineOptions() {     return [];   }    // /**   //  * {@inheritdoc}   //  */   public function buildOptionsForm(&$form, FormStateInterface $form_state) {      parent::buildOptionsForm($form, $form_state);   }    /**    * {@inheritdoc}    */     public function render(ResultRow $values) {     $entity = $values->_entity;      $build['#cache'] = [       'max-age' => 0     ];      $build['request_information'] = [       '#markup' => 'Request Information For Request # '. $entity->id(),     ];      return $build;   }  } 

I am unsure what the problem could be. I define other custom fields in the system similarly and they don’t cause the same issues.