ERROR_SXS_INVALID_XML_NAMESPACE_URI - 14014 (0x36BE)

Technical Background

The ERROR_SXS_INVALID_XML_NAMESPACE_URI error code is a specific error that occurs when the Windows Side-by-Side (SXS) assembly manifest contains an invalid URI reference. This error typically indicates a problem with the XML-based configuration or metadata of SXS assemblies, which are used to manage and load multiple versions of the same DLLs in a single application domain.

Error Details

The ERROR_SXS_INVALID_XML_NAMESPACE_URI is returned when the system encounters an invalid URI reference within the manifest file. This can happen during various operations such as loading or resolving SXS assemblies, where the XML manifest contains malformed or incorrect namespace URIs.

Common Causes

• Invalid Parameter Values: The manifest file may contain a parameter that specifies an invalid URI.
• Incorrect Object Type: The operation being performed might be expecting a different type of object (e.g., a directory instead of a file) which leads to the error.
• Exceeding Limits: There could be limitations on the length or format of URIs, and the manifest may violate these constraints.

Real-World Context

This error can occur in scenarios where applications are dynamically loading assemblies from the SXS store. For example, when an application attempts to load a specific version of a DLL that is registered in the SXS store, it might encounter this error if the manifest associated with the assembly contains invalid URI references.

Is This Error Critical?

The criticality of this error depends on the context in which it occurs. If the operation fails due to an invalid URI, the application may not be able to load or use the required assemblies, leading to potential runtime errors or crashes.

How to Diagnose

1. Review Operation Context: Ensure that the operation being performed is appropriate for the SXS assembly manifest.
2. Validate Parameters: Check the parameters passed to the API calls related to SXS assembly loading and ensure they are valid and correctly formatted.
3. Confirm Object Types: Verify that the object types expected by the manifest match those provided in the application or system configuration.

How to Resolve

1. Correct Parameter Usage: Ensure all parameters used in the operation are correct and properly formatted, especially when specifying URIs.
2. Adjust Operation Context: If the context of the operation is incorrect, adjust it to ensure compatibility with SXS assembly requirements.
3. Restore Data: If data corruption or invalid entries are suspected, restore the manifest file from a backup or reconfigure it according to best practices.

Developer Notes

Developers should be cautious when modifying XML manifests for SXS assemblies and validate all URI references before deployment. Proper validation can prevent such errors and ensure smooth operation of applications that rely on SXS assemblies.

Related Errors

• ERROR_SXS_FILE_HASH_MISMATCH
• ERROR_SXS_MANIFEST_IDENTITY_Mismatch

FAQ

Q: What does the ERROR_SXS_INVALID_XML_NAMESPACE_URI error mean?

A: This error indicates that a manifest file contains an invalid URI reference, which can prevent SXS assemblies from being loaded correctly.

Q: How can I avoid this error?

A: Ensure all XML manifests are well-formed and validate URI references before deployment. Use tools provided by Microsoft to assist in validating SXS assembly manifests.

Summary

The ERROR_SXS_INVALID_XML_NAMESPACE_URI is a specific error related to the Windows Side-by-Side (SXS) assembly manifest containing an invalid URI reference. This can lead to issues with loading and using assemblies, particularly during dynamic application execution. By understanding the causes and following best practices for managing SXS manifests, developers can mitigate this issue.