# deprecated_member_use

> Details about the deprecated_member_use diagnostic produced by the Dart analyzer.



_'{0}' is deprecated and shouldn't be used._

_'{0}' is deprecated and shouldn't be used. {1}_

## Description

The analyzer produces this diagnostic when a deprecated library or class
member is used in a different package.

## Example

If the method `m` in the class `C` is annotated with `@deprecated`, then
the following code produces this diagnostic:

```dart
void f(C c) {
  c.[!m!]();
}
```

## Common fixes

The documentation for declarations that are annotated with `@deprecated`
should indicate what code to use in place of the deprecated code.

