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package_names

Contents
Lint rule

The package name '{0}' isn't a lower_case_with_underscores identifier.

Description

#

The analyzer produces this diagnostic when the name of a package doesn't use the lower_case_with_underscores naming convention.

Example

#

The following code produces this diagnostic because the name of the package uses the lowerCamelCase naming convention:

yaml
name: somePackage

Common fixes

#

Rewrite the name of the package using the lower_case_with_underscores naming convention:

yaml
name: some_package

Unless stated otherwise, the documentation on this site reflects Dart 3.8.1. Page last updated on 2025-05-08. View source or report an issue.