DFS0573E I/O ERROR DURING BLDL ON ACBLIB DIRECTORY
Explanation
An I/O error occurred during the execution of an OS BLDL (build library directory list) macro within module DFSUAMB0.
Programmer response
Correct the condition which led to the I/O error, and rerun the program. For more information about recovering from ACBLIB errors, see the description in IMS Version 15.5 Operations and Automation about recovering from IMS failures.