ERROR_UNKNOWN_REVISION - 1305 (0x519)
The revision level is unknown.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_UNKNOWN_REVISION error code indicates that the system encountered an unknown revision level, which could be due to a variety of reasons. This error is typically returned by functions or APIs when they are unable to determine the version or revision level of a particular component or resource.
Error Details
- Error Name: ERROR_UNKNOWN_REVISION
- Numeric Code: 1305 (0x519)
- Short Description: The revision level is unknown.
This error suggests that there might be an issue with the compatibility or versioning of a component, such as a driver or file format. It can occur in various contexts where the system expects to recognize and handle specific revisions but fails to do so.
Usage Context
The ERROR_UNKNOWN_REVISION is commonly encountered in scenarios involving:
- Driver installation or updates
- File format recognition
- Versioned data structures
- Custom APIs that rely on known revision levels
Developer Interpretation
When this error code is returned, developers should consider the following aspects:
- Verify the version and compatibility of all involved components.
- Ensure that the system has access to the necessary metadata or configuration files that define the expected revisions.
- Check for any updates or patches that might resolve the issue.
- Review the implementation details of the API or function that generated the error to ensure it handles unknown revisions appropriately.
Related Errors
ERROR_BAD_FORMAT(19)ERROR_INVALID_DATA(25)ERROR_NOT_SUPPORTED(50)
These errors might provide additional context when troubleshooting issues related to revision levels or compatibility.
FAQ
Q: What does the ERROR_UNKNOWN_REVISION error mean?
A: It indicates that the system could not determine the revision level of a component, leading to an unknown state.
Q: How can I resolve this issue?
A: Ensure all components are up-to-date and compatible. Verify metadata or configuration files for any missing information.
Summary
The ERROR_UNKNOWN_REVISION error code is a generic indication that the system encountered an unrecognized revision level, which could stem from various causes such as outdated software or missing metadata. Developers should focus on ensuring compatibility and verifying all necessary components to resolve this issue.