When adding the contextual links field to any view I get the following entries in the watchdog:
Notice: Undefined index: element_type_enable in Drupal\views\Plugin\views\field\FieldPluginBase->submitOptionsForm() (line 489 of /drupal-8-beta12/core/modules/views/src/Plugin/views/field/FieldPluginBase.php).
Notice: Undefined index: element_label_type_enable in Drupal\views\Plugin\views\field\FieldPluginBase->submitOptionsForm() (line 489 of /drupal-8-beta12/core/modules/views/src/Plugin/views/field/FieldPluginBase.php).
Notice: Undefined index: element_wrapper_type_enable in Drupal\views\Plugin\views\field\FieldPluginBase->submitOptionsForm() (line 489 of /drupal-8-beta12/core/modules/views/src/Plugin/views/field/FieldPluginBase.php).
Notice: Undefined index: element_class_enable in Drupal\views\Plugin\views\field\FieldPluginBase->submitOptionsForm() (line 495 of /drupal-8-beta12/core/modules/views/src/Plugin/views/field/FieldPluginBase.php).
Notice: Undefined index: element_label_class_enable in Drupal\views\Plugin\views\field\FieldPluginBase->submitOptionsForm() (line 495 of /drupal-8-beta12/core/modules/views/src/Plugin/views/field/FieldPluginBase.php).
Notice: Undefined index: element_wrapper_class_enable in Drupal\views\Plugin\views\field\FieldPluginBase->submitOptionsForm() (line 495 of /drupal-8-beta12/core/modules/views/src/Plugin/views/field/FieldPluginBase.php).