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Error: Adding a Geography Markup Language file to ArcMap returns 'Unable to read GML file'

Error Message

When adding a Geography Markup Language (GML) file to ArcMap, the following error message occurs:

“Unable to read GML file”

Cause

The ArcGIS OGC Interoperability Add-on supports the ESRI GML profile, and is a subset of the GML 2.1.2 specification. The file being loaded includes elements unsupported by the ESRI GML profile.

Solution or Workaround

Load only GML files that support the ESRI GML profile.