Foro luz blanca

buenas noches,

no me deja añadir colecciones en "recetas" ni tampoco agregar  recetas a la lista de la compra, estoy registrada pero no me deja.

me da este error

A new entity was found through the relationship 'Tmrc\CommonBundle\Entity\Master\ShoppingList#user' that was not configured to cascade persist operations for entity: Tmrc\CommonBundle\Entity\Master\User@000000003b84e1e60000000076713267. To solve this issue: Either explicitly call EntityManager#persist() on this unknown entity or configure cascade persist this association in the mapping for example @ManyToOne(..,cascade={"persist"}). If you cannot find out which entity causes the problem implement 'Tmrc\CommonBundle\Entity\Master\User#__toString()' to get a clue.

a ver si alguien me puede ayudar