ERROR_VERSION_PARSE_ERROR - 777 (0x309)
A version number could not be parsed.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_VERSION_PARSE_ERROR (777, 0x309) indicates that a version number could not be parsed correctly. This typically occurs during operations where version numbers are expected and must conform to specific formats or structures.
Error Details
This error is generic in nature, meaning it does not specify the exact context or operation where the parsing failure occurred. It simply signals that an attempt to parse a version number has failed due to incorrect format or structure.
Usage Context
The ERROR_VERSION_PARSE_ERROR can be encountered in various scenarios within Windows applications and system operations. Common contexts include:
- Parsing file versions during installation or update processes.
- Handling version information in registry keys or configuration files.
- Validating version numbers for software compatibility checks.
Developer Interpretation
When encountering ERROR_VERSION_PARSE_ERROR, developers should focus on the context of the operation that failed. The error suggests that a version number was expected but could not be correctly parsed, which may indicate issues with input data or incorrect format expectations.
Related Errors
- ERROR_BAD_FORMAT (998, 0x3E6): Indicates an invalid file format, possibly related to version parsing failures in certain contexts.
- ERROR_INVALID_DATA (1326, 0x52A): Suggests that the data provided is not valid for the operation, which could include improperly formatted version numbers.
FAQ
Q: What does ERROR_VERSION_PARSE_ERROR mean?
A: It indicates that a version number could not be parsed correctly during an operation where such information was expected.
Q: How can I troubleshoot this error?
A: Review the context of the operation and ensure that all version numbers are provided in the correct format. Verify input data and parameter values to ensure they meet the required specifications.
Summary
ERROR_VERSION_PARSE_ERROR is a generic error code indicating a failure to parse a version number. Developers should focus on validating input data and ensuring it conforms to expected formats when encountering this error.