1. Dart
2. dart:io
3. FileSystemException
4. osError property

##### FileSystemException class

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

description

# osError property Null safety

OSError? osError
final

The underlying OS error. Can be `null` if the exception is not raised due to an OS error.

## Implementation

    final OSError? osError