ArcGIS Server platforms do not support all the data formats that ArcGIS Desktop supports. If any of the following data formats are present in a folder registered with the server's data store, and your task uses this data, you cannot publish:
- Personal geodatabase
- Excel table
Solution
There are two solutions: unregister the folder in the data store or convert the data.
Unregister the folder in the data store
After removing the folder from the data store, unsupported data formats will be converted to fully supported data formats during the publishing process. The converted data will be copied to the server. You will need to exit the Service Editor before unregistering the folder from the data store.