[rustc.git] / src / librustc_error_codes / error_codes / E0551.md

An invalid meta-item was used inside an attribute.

Erroneous code example:

```compile_fail,E0551
#[deprecated(note)] // error!
fn i_am_deprecated() {}
```

Meta items are the key-value pairs inside of an attribute. To fix this issue,
you need to give a value to the `note` key. Example:

```
#[deprecated(note = "because")] // ok!
fn i_am_deprecated() {}
```
Commit	Line	Data
60c5eb7d XL	1	An invalid meta-item was used inside an attribute.
	2
	3	Erroneous code example:
	4
	5	```compile_fail,E0551
	6	#[deprecated(note)] // error!
	7	fn i_am_deprecated() {}
	8	```
	9
	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:
	12
	13	```
	14	#[deprecated(note = "because")] // ok!
	15	fn i_am_deprecated() {}
	16	```