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When running a geoprocessing tool to create an output feature class, the tool creates a spatial index according to the features in the new feature class. Geodatabases that use grid-based spatial indexes include file geodatabases, personal geodatabases, and some enterprise geodatabases.
A grid-based spatial index must obey the following rule: if more than one grid is used, each successive grid must be set at least three times larger than the preceding grid size. For more information on spatial index grids, refer to the following ArcGIS Web Help page: Output Spatial Grid 1, 2, 3 (Environment setting).
If the rule is violated, the following error message displays:
Error: Each grid size must be at least three times larger than the preceding grid size.
The error occurs due to the following reasons:
To resolve the error, use one of the following solutions below depending on the cause: