Doctrine does not have a property named "mappedBy"?

Question

Doctrine ORM

Guys, hello.
I don’t understand why such an error(((
All code posted on pastebin
Product: pastebin
Categories: pastebin
I already have all doubts((

Answer 1

It's very simple: In the code Producton line 123 you use

@ORM\ManyToOne(targetEntity="Category", mappedBy="product")

whereas for ManyToOne it is necessary to use inversedBy, this is explicitly described in the documentation and can be seen in the code of this annotation.