ERROR_EVT_FILTER_INVTEST - 15017 (0x3AA9)
A step operation must involve either a node test or, in the case of a predicate, an algebraic expression against which to test each node in the node set identified by the preceding node set can be evaluated.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_EVT_FILTER_INVTEST (15017, 0x3AA9) is returned when a step operation in an event log query does not include either a node test or an algebraic expression for predicate evaluation. This indicates that the query structure is incomplete and cannot be processed as intended.
Error Details
In the context of Windows Event Log queries, each step in a complex query must specify how to evaluate nodes within the log data. A node test defines which nodes are selected, while an algebraic expression (predicate) further refines these selections based on specific conditions. Without either of these elements, the query cannot be executed correctly.
Usage Context
This error typically occurs when using the Windows Event Log API or related tools to construct and execute complex event queries. It is important for developers to ensure that each step in their query logic includes a valid node test or predicate expression to avoid this error.
Developer Interpretation
Developers should interpret this error as an indication that their query structure is incomplete. To resolve the issue, they must add either a node test or predicate expression to each step of their event log query. This ensures that the query can be properly evaluated and executed by the system.
Related Errors
ERROR_EVT_QUERY_SYNTAX(15016): Indicates syntax errors in the query structure.ERROR_EVT_INVALID_QUERY(15023): General error indicating an invalid event log query.
FAQ
Q: What does the ERROR_EVT_FILTER_INVTEST error mean?
A: It indicates that a step operation in an event log query lacks either a node test or predicate expression, making it incomplete and unexecutable.
Q: How can I resolve this error?
A: Ensure each step of your query includes a valid node test or predicate expression to properly evaluate the event log data.
Summary
The ERROR_EVT_FILTER_INVTEST error code highlights an issue with the structure of complex event queries. Developers must ensure that their queries include necessary elements such as node tests and predicates to avoid this error and ensure proper execution.