AR System Message Catalog
ARERR  Set/Create/Delete operations to definition are only supported on RPC socket 390600.
- AR System server
- Server messages and notifications
The server is running in a multiple-socket mode, and the socket in use for this client is not the default socket of 390600. All structural changes must be made using the server connected to the default socket. Use routines connected to the default socket, or restart this tool with the RPC socket definition reset to the default value of 390600.