ERROR_SXS_MANIFEST_FORMAT_ERROR - 14004 (0x36B4)
The manifest file does not begin with the required tag and format information.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_SXS_MANIFEST_FORMAT_ERROR is a specific Windows API error code indicating that the manifest file being processed does not conform to the expected format. This typically occurs during the execution of operations involving side-by-side assemblies (SXS) where the manifest file is required but is improperly structured.
Error Details
This error suggests that the manifest file, which is crucial for managing and loading side-by-side assemblies in Windows, has a structure or content issue. The manifest should begin with specific tags and format information to ensure it can be correctly parsed by the system.
Usage Context
The ERROR_SXS_MANIFEST_FORMAT_ERROR can occur in various scenarios where SXS manifests are involved, such as during application deployment, runtime execution, or assembly loading processes. It is particularly relevant for developers working with side-by-side assemblies and manifest files.
Developer Interpretation
Developers should interpret this error as an indication that the manifest file being used does not meet the necessary format requirements. This could be due to incorrect XML structure, missing required elements, or other structural issues within the manifest file. Developers are advised to validate the manifest file against the expected schema and ensure it adheres to the correct format.
Related Errors
ERROR_SXS_FILE_HASH_MISMATCH(14002, 0x36B2): Occurs when there is a mismatch between the hash of an assembly in the manifest and the actual file content.ERROR_SXS_MANIFEST_IDENTITY_NOT_SCOPED(14005, 0x36B5): Indicates that the identity scope for a manifest is not correctly defined.
FAQ
Q: What does the ERROR_SXS_MANIFEST_FORMAT_ERROR mean?
A: It indicates that the manifest file being processed does not begin with the required tag and format information, preventing it from being correctly parsed by the system.
Q: How can I resolve this error?
A: Validate the manifest file against the expected schema to ensure it adheres to the correct format. Correct any structural issues or missing elements before retrying the operation.
Summary
The ERROR_SXS_MANIFEST_FORMAT_ERROR is a specific Windows API error code that indicates an issue with the format of a manifest file used in side-by-side assembly operations. Developers should ensure their manifests are correctly structured to avoid this error and maintain system stability during application execution.