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ERROR_INVALID_OPERATION
The request references an invalid operation or action
Several RSM control APIs return an operation GUID when an asynchronous inject or eject sequence starts. Stop, retract or continuation requests must refer to that exact active operation and use an action supported by the API. A stale GUID, an operation created in another session, or a stop request after completion can therefore fail even when the library itself is healthy.
Record operation identifiers together with library, action and lifecycle state. Before issuing a stop or retract, determine whether the operation already completed, timed out or was canceled. Do not substitute the library GUID or request GUID for the inject/eject operation GUID; RSM uses separate object classes for each.
What to inspect
- Log the start action and returned operation GUID.
- Check whether the operation is still active before stopping it.
- Validate the action constant against the specific RSM API.
References
- Microsoft: inserting media through an RSM port
- Microsoft: queuing and performing media ejection
- Microsoft: RSM object types, GUIDs and operational state
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