in reply to Re^2: PPM has module but BugZilla says it's missing
in thread PPM has module but BugZilla says it's missing
Then it looks like bugs in one or the other of the Bugzilla scripts that is telling porkies.
Maybe related to this?
Version string '-1, set by base.pm' contains invalid data; ignoring: ' +-1, set by base.pm' at Bugzilla/Install/Requirements.pm line 545.