Error: Cannot access index file
When creating a new client-side geocoding service, the following error occurs after clicking OK on the New Geocoding Service dialog box:
Unable to store the geocoding service.
Cannot access index file.
When creating a client-side geocoding service that uses a shapefile, coverage, or personal geodatabase feature class as reference data, ArcGIS checks the reference data source for an associated geocoding index file or table. If it doesn't have one, ArcGIS attempts to create a geocoding index for the reference data source.
For shapefiles and coverages, ArcGIS attempts to create the geocoding index file in the same folder that contains the data source.
For personal geodatabase feature classes, the geocoding index table is created in the personal geodatabase that contains the reference data source. If the geocoding index for the reference data source doesn't exist, the user must have write access to the folder or personal geodatabase that contains the reference data source.
Solution or Workaround
Copy the reference data source to a folder to which you have write permissions.
If you are trying to create a geocoding service that uses a personal geodatabase feature class or table as reference data, you must also ensure that the Access database is not read-only.