Oracle Error Message
ORA-15557: workload replay client cannot access the replay directory or the database version do not match the preprocessing one
Reason for the Error
The Workload Replay Client could not access the directory that contained the workload to be replayed, or the workload was preprocessed by a different version of the database.
Solution
Restart the workload replay after specifying the correct replay directory, or preprocess it with the correct database.