Notice: Undefined variable: view in C:\Landaweb\webs\landaweb\backend\vendor\symfony\framework-bundle\Resources\views\Form\collection_widget.html.php on line 4

Notice: Trying to access array offset on value of type null in C:\Landaweb\webs\landaweb\backend\vendor\symfony\framework-bundle\Resources\views\Form\collection_widget.html.php on line 4

Fatal error: Uncaught Error: Call to a member function widget() on null in C:\Landaweb\webs\landaweb\backend\vendor\symfony\framework-bundle\Resources\views\Form\collection_widget.html.php:4 Stack trace: #0 {main} thrown in C:\Landaweb\webs\landaweb\backend\vendor\symfony\framework-bundle\Resources\views\Form\collection_widget.html.php on line 4