RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prima/system01.dbf confl

sql statement: alter database mount standby database
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 12/27/2018 17:00:52
RMAN-05501: aborting duplication of target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/primary/users01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/primary/example01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/primary/undotbs01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/primary/sysaux01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/primary/system01.dbf conflicts with a file used by the target database

RMAN> duplicate target database for standby from active database

执行上面命令报错。

解决办法：

RMAN> duplicate target database for standby from active database nofilenamecheck;