select by location--> completely within does not work as intended

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10-04-2021 03:16 PM
New Contributor III


I am using ArcGIS Pro 2.8.3.

I have a shapefile of census blocks of LA county. I also have a layer of buffers. I want to find buffers that lay completely within the boundary of LA county. So I use select by location--> completely within. However, this command gives me only the buffers that lie completely within any individual census block, instead of within the entire LA county.

I try to go to edit-->merge to merge all the census blocks into one, so that I have one polygon of LA county. No matter whether I use "Existing Feature" or "New feature", I always receive the error message: merge features failure. the spatial index grid size is invalid.

I was wondering whether anyone could help me with this. Thank you.

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MVP Esteemed Contributor
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MVP Esteemed Contributor

did you try

Modify a spatial index—ArcGIS Pro | Documentation

... sort of retired...