const_not_initialized

The constant '{0}' must be initialized.

The analyzer produces this diagnostic when a variable that is declared to be a constant doesn't have an initializer.

The following code produces this diagnostic because c isn't initialized:

const c;

Add an initializer:

const c = 'c';

Unless stated otherwise, the documentation on this site reflects Dart 3.7.3. Page last updated on 2025-05-08. View source or report an issue.