I'm able to add items to the CSSearchableIndex on the iOS9 simulator, but on a device I see:
[com.apple.corespotlight.log.index] Hit Error index items:Error Domain=CSIndexErrorDomain Code=-1003 "The operation couldn’t be completed. (CSIndexErrorDomain error -1003.)"
Error code translates to enum value CSIndexErrorCodeRemoteConnectionError with the comment //There was an error trying to communicate with the remote process
Anyone else seeing this issue?