https://community.esri.com/t5/arcgis-pro-questions/cache-spatial-reference-error-when-exporting-web/m-p/1696403#M102791 <P>Could you try saving your project, closing it, and trying to publish again?</P><P>If not, are you able to publish the custom basemap as a layer to ArcGIS Online?</P><P><A href="https://pro.arcgis.com/en/pro-app/latest/help/sharing/analyzer-error-messages/00079-cache-spatial-reference-does-not-match-map-dataset-layer-spatial-reference.htm" target="_blank">https://pro.arcgis.com/en/pro-app/latest/help/sharing/analyzer-error-messages/00079-cache-spatial-reference-does-not-match-map-dataset-layer-spatial-reference.htm</A></P> Wed, 15 Apr 2026 13:04:56 GMT StephanieM1 2026-04-15T13:04:56Z https://community.esri.com/t5/arcgis-pro-questions/cache-spatial-reference-error-when-exporting-web/m-p/1696280#M102782 <P>This is my first time trying to share a web map.&nbsp; All of my layers are in the correct projection, NAD 1983 UTM Zone 4N, including my basemap which I made from custom.&nbsp; When I try to export it, I get the following error: "00079 Cache spatial reference does not match map/dataset/ layer spatial reference"&nbsp;</P><P>How do I change the cache spatial reference?&nbsp;&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="cr3_0-1776200629867.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/151094iA6D439526DD8E7D5/image-size/medium?v=v2&amp;px=400" role="button" title="cr3_0-1776200629867.png" alt="cr3_0-1776200629867.png" /></span></P><P>&nbsp;</P><P>Thank you&nbsp;</P> Tue, 14 Apr 2026 21:04:37 GMT https://community.esri.com/t5/arcgis-pro-questions/cache-spatial-reference-error-when-exporting-web/m-p/1696280#M102782 cr3 2026-04-14T21:04:37Z https://community.esri.com/t5/arcgis-pro-questions/cache-spatial-reference-error-when-exporting-web/m-p/1696403#M102791 <P>Could you try saving your project, closing it, and trying to publish again?</P><P>If not, are you able to publish the custom basemap as a layer to ArcGIS Online?</P><P><A href="https://pro.arcgis.com/en/pro-app/latest/help/sharing/analyzer-error-messages/00079-cache-spatial-reference-does-not-match-map-dataset-layer-spatial-reference.htm" target="_blank">https://pro.arcgis.com/en/pro-app/latest/help/sharing/analyzer-error-messages/00079-cache-spatial-reference-does-not-match-map-dataset-layer-spatial-reference.htm</A></P> Wed, 15 Apr 2026 13:04:56 GMT https://community.esri.com/t5/arcgis-pro-questions/cache-spatial-reference-error-when-exporting-web/m-p/1696403#M102791 StephanieM1 2026-04-15T13:04:56Z