The following circumstances might cause the message "Libname libref is not assigned" to occur in SAS^® 9.1.3, Service Pack 4 or earlier.

• The SAS data library was assigned without specifying an engine because a LIBNAME statement was submitted without an engine parameter
• The library was allocated externally and its ddname was specified as a libref (implicit assignment)

The problem can be circumvented by specifying the engine explicitly, using a LIBNAME statement.

Select the Hot Fix tab in this note to access the hot fix for this issue.

Operating System and Release Information

A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:

A fix for SAS 9.1.3 (9.1 TS1M3) with Asian Language Support (DBCS) for this issue is available at: