1 An invalid meta-item was used inside an attribute.
3 Erroneous code example:
6 #[deprecated(note)] // error!
7 fn i_am_deprecated() {}
10 Meta items are the key-value pairs inside of an attribute. To fix this issue,
11 you need to give a value to the `note` key. Example:
14 #[deprecated(note = "because")] // ok!
15 fn i_am_deprecated() {}