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QPARSE_E_EXPECTING_PROPERTY
The parser expected a property name
QPARSE_E_EXPECTING_PROPERTY is HRESULT 0x80041668. Windows documents it as “Expecting property name.”
Legacy API stage
This result belongs to legacy Windows query parsing and is returned while starting a property-qualified comparison or other property expression. The exact condition is: the field selector is empty, alias resolution returns nothing or a literal follows the operator directly.
Why it appears
Developer evidence
- Record preceding operator before releasing the relevant objects.
- Associate raw field with the exact UTC timestamp and correlation identifier.
- Compare failing and known-good values for canonical mapping under the same provider or handler version.
- Record the source and normalization path of next token, not only its display form.
- Record final parser input bytes before releasing the relevant objects.
Disciplined troubleshooting
- Capture preceding operator and raw field at the call boundary that returns this result.
- Confirm the operation reached starting a property-qualified comparison or other property expression with the intended canonical mapping.
- capture the preceding operator and raw-to-canonical property mapping.
Retry conditions
Supply an intended supported property; do not silently substitute a broad default. Retrying identical parser bytes cannot succeed; regenerate the specific token or schema pairing that failed.
Misleading assumptions
Related query outcomes
QPARSE_E_NO_SUCH_PROPERTY means a token exists but cannot be resolved.
Developer and administrator guidance
Concrete troubleshooting case
A UI row contains operator and value but no selected field. Validation blocks serialization instead of emitting = "draft".
Official Microsoft references
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