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Before removing a 5.1.1 release, check CMD_REFERENCE_DIRECTORY in the Universal Command server member (UCMDS) of the Workload Automation configuration file (UNVCONF) - located in the product library (UNVPRD511); an alternate command reference library previously may have been selected. If it has, manually clear and delete the default command reference library, UNVCMDREF, after removing the 5.1.1 release.
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