No valid asynchronous I/O queue was found for block port index ,number,integer}, and leaf signal path (valid leaf sig

[mamorani]

No valid asynchronous I/O queue was found for block port index ,number,integer}, and leaf signal path (valid leaf signal paths include ). If this is a non-virtual bus signal that is being observed, keep in mind that you must identify which specific leaf signal(s) you wish to observe in this bus.

observers