Import terminated successfully with warnings

I have an export file created by EXPORT:V08.00.05 via conventional path. My system is running Oracle9i Enterprise Edition Release 9.0.1.1. When I tried to import the file, I got an error message:

Connected to: Oracle9i Enterprise Edition Release 9.0.1.1.1 - Production
With the Partitioning option
JServer Release 9.0.1.1.1 - Production

Export file created by EXPORT:V08.00.05 via conventional path

Warning: the objects were exported by REPOS_OWNER, not by you

import done in WE8ISO8859P1 character set and UTF8 NCHAR character set
import server uses WE8MSWIN1252 character set (possible charset conversion)
export server uses WE8ISO8859P1 NCHAR character set (possible ncharset conversion)
. importing REPOS_OWNER's objects into HR
IMP-00033: Warning: Table "XTSYS_EXPORT_OBJECTS" not found in export file
IMP-00033: Warning: Table "XTSYS_IMPORT_IRID_MAPPING" not found in export file
IMP-00033: Warning: Table "XTSYS_IMPORT_IVID_MAPPING" not found in export file
IMP-00033: Warning: Table "XTSYS_TABS_EXPORTED" not found in export file
IMP-00033: Warning: Table "XTSYS_RM$REPOSITORIES" not found in export file
Import terminated successfully with warnings.

Do I fix it?