import error ORA-06512: at "SYS.DBMS_SNAPSHOT_UTL", line 1677

When doing import using fromuser touser parameter got below error:

IMP-00003: ORACLE error 1435 encountered
ORA-01435: user does not exist
ORA-06512: at "SYS.DBMS_ISNAPSHOT", line 108
ORA-06512: at "SYS.DBMS_SNAPSHOT_UTL", line 1677
ORA-06512: at line 1
IMP-00000: Import terminated unsuccessfully

Cause : the target schema got snapshot log.

Solution : Either delete the snapshot log, again take the export and re-import.

              Ensure user which got the snapshot log present in target database to prevent the error.