The Integration Service data movement mode differs from the data movement mode used when the cache was created.
The Integration Service failed to upgrade the incremental aggregation files because you started a session using incremental aggregation after changing the Integration Service data movement mode. The Integration Service cannot access incremental aggregation files created in a different data movement mode.
If the Integration Service data movement mode was changed in error, change the data movement mode back to its original setting. Otherwise, delete the existing incremental aggregation files or configure the session to reinitialize the aggregate cache.