diff --git a/core/modules/views/lib/Drupal/views/Plugin/Derivative/ViewsLocalTask.php b/core/modules/views/lib/Drupal/views/Plugin/Derivative/ViewsLocalTask.php
index 8dcf3da..f44ab3f 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/Derivative/ViewsLocalTask.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/Derivative/ViewsLocalTask.php
@@ -71,6 +71,11 @@ public function getDerivativeDefinitions(array $base_plugin_definition) {
       $menu = $executable->display_handler->getOption('menu');
       if (in_array($menu['type'], array('tab', 'default tab'))) {
         $plugin_id = 'view.' . $executable->storage->id() . '.' . $display_id;
+
+        if (!isset($view_route_names[$executable->storage->id() . '.' . $display_id])) {
+          continue;
+        }
+
         $route_name = $view_route_names[$executable->storage->id() . '.' . $display_id];
 
         // Don't add a local task for views which override existing routes.
@@ -110,6 +115,12 @@ public function alterLocalTasks(&$local_tasks) {
       // We already have set the tab_root_id for default tabs.
       if (in_array($menu['type'], array('tab'))) {
         $plugin_id = 'view.' . $executable->storage->id() . '.' . $display_id;
+
+        if (!isset($view_route_names[$executable->storage->id() . '.' . $display_id])) {
+          unset($local_tasks[$plugin_id]);
+          continue;
+        }
+
         $view_route_name = $view_route_names[$executable->storage->id() . '.' . $display_id];
 
         // Don't add a local task for views which override existing routes.