ERROR
When validating a topology containing one or more polygon feature classes and the 'Must Not Overlap' topology rule, ArcMap or ArcCatalog returns one of the following errors: "Validate Topology failed. A failure was detected inside the topology engine overlay processor. [error id: 220]", or "Validate Topology failed. A failure was detected inside the topology engine overlay processor. [error id: 221]".
When a topology is validated, where the 'Must Not Overlap' rule is applied to a feature class with many coincident polygons, a very large number of topology errors are generated. These messages are returned when the maximum error count allowed during a validate operation has been exceeded.
Article ID:000009961
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