When using the Export to File Geodatabase functionality in ArcGIS Online, if the gdb_serviceItems table already includes the service, the following error message is received, "Error Exporting to File Geodatabase format."
This issue is no longer reproducible as of the current version (ArcGIS Online 7.1). File Geodatabases are exported with the gdb_serviceItems table, but are not included when the file geodatabase is republished.
解决办法
Add the layer into ArcMap from ArcGIS Online, and save it to the machine's desktop for editing.ORRemove the gdb_service items from the dataset before publishing to ArcGIS Online.ORRename the service items from the REST endpoint.