HAT5593 {0} cannot be applied because it requires prereq fix {1}
Explanation
You are trying to apply fix {0} and fix {0} cannot be applied until fix {1} has been applied, tested, and committed.
User response
Apply, test and commit fix {1}.
You are trying to apply fix {0} and fix {0} cannot be applied until fix {1} has been applied, tested, and committed.
Apply, test and commit fix {1}.