When adding a shapefile to a map in ArcGIS Pro using the Add Data function, the following error message is returned:
Error: Failed to add data, unsupported data type. <shapefile>.shp
Adding the same shapefile in ArcMap returns the following error messages:
Error: Error opening feature class.
Error: Could not add the specified data object to the map.
This issue occurs if a shapefile is missing the necessary supporting files. As stated in ArcGIS Help: Shapefile file extensions, a shapefile cannot be displayed in any ArcGIS platform without the required supporting files.
For a shapefile to work, the following files must exist in the same folder location:
Note: Many shapefiles also have optional supporting files such as .prj (projection), .xml (metadata), .sbn and .sbx (spatial index), etc.
When copying or moving a shapefile, ensure the required supporting files stated above are copied or moved along with it. It is recommended to copy or move a shapefile using ArcCatalog or a geoprocessing tool. For more information on moving a shapefile using a geoprocessing tool, refer to ArcGIS Help: Geoprocessing considerations for shapefile outputs.
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