How do I Fix the ERROR_VERSION_PARSE_ERROR Bug Check

The ERROR_VERSION_PARSE_ERROR with the code 777 (0x309) and the description A version number could not be parsed refers to an error encountered when a system process or application attempts to interpret a version string but fails due to an invalid or unrecognized format.

This error may occur in various contexts, including during software installation, API interactions, or system configuration, where version numbers are critical for compatibility and dependency checks.

How do I fix ERROR_VERSION_PARSE_ERROR?

1. Verify the configuration or the metadata files

• Locate configuration files (e.g., .json, .ini, .xml) or manifests used by the application or system.
• Check for malformed or missing version strings.
  • Correct example: { "version": "2.5.1" }
  • Avoid values like: { "version": "2.5.invalid" }

2. Reinstall the problematic application

• Uninstall the application or program encountering the error:
  • Press Windows + I, go to Apps → Installed Apps, and uninstall the software.
• Download and install the latest version of the application from the official website.

3. Update the dependencies

If the error involves a framework or library:

• Identify the required version of the dependency (e.g., .NET, Java, Python library).
• Install the correct version or update it to the latest supported release.

4. Run System File Checker (SFC)

1. Click the Start button, type cmd and select Run as administrator to open Command Prompt as an administrator.
2. Run the following command: sfc /scannow
3. Follow on-screen instructions to repair any detected issues.

5. Debug Version Parsing (For Developers)

1. Validate inputs:
   • Ensure the version strings are valid before parsing.
   • Use libraries or regular expressions for strict version format validation.
2. Log and handle exceptions:
   • Log parsing failures to diagnose problematic version strings.
3. Use Semantic Versioning Libraries:
   • Example in Python: from packaging.version import Version, InvalidVersion try: version = Version("1.0.0") except InvalidVersion: print("Invalid version format!")

Prevention tips for developers

• Always use semantic versioning standards like major.minor.patch to avoid parsing issues.
• Regularly update applications and dependencies to maintain compatibility.
• Validate version strings in configuration files or during software development.

By following these steps, you can address and resolve the ERROR_VERSION_PARSE_ERROR effectively.

The error may be connected to the EventID 300 Failed to Parse Element so click the highlighted link for further solutions.

Let us know in the comments below if you need further information.