1. Dart
2. dart:core
3. AssertionError
4. message property

##### AssertionError class

1. Constructors
2. AssertionError
3. Properties
4. hashCode
5. message
6. runtimeType
7. stackTrace
8. Methods
9. noSuchMethod
10. toString
11. Operators
12. operator ==

description

# message property Null safety

Object? message
final

Message describing the assertion error.

## Implementation

    final Object? message