invalid_
Invalid URI syntax: '{0}'.
Description
#The analyzer produces this diagnostic when a URI in a directive doesn't conform to the syntax of a valid URI.
Example
#
The following code produces this diagnostic because '#' isn't a valid
URI:
dart
import '#';
Common fixes
#Replace the invalid URI with a valid URI.
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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.