deprecated_
The '{0}' field is no longer used and can be removed.
Description
#
The analyzer produces this diagnostic when a key is used in a
pubspec.yaml
file that was deprecated. Unused keys take up space and
might imply semantics that are no longer valid.
Example
#
The following code produces this diagnostic because the
author
key is no
longer being used:
name: example
author: 'Dash'
Common fixes
#Remove the deprecated key:
name: example
Unless stated otherwise, the documentation on this site reflects Dart 3.9.2. Page last updated on 2025-9-1. View source or report an issue.