private function buildMenuWithoutExistingParent($menuAccessible)
    {
        $withoutParent = collect($this->itemsWithoutParent)->unique('route')->all();

        foreach ( $withoutParent as &$item ) {
            $children = $this->buildMenuTree($menuAccessible, $item['route']);

            if( $children ) {
                $item['children'] = $children;
            }
        }

        return $withoutParent;
    }