oracle 无法 启动问题

C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN
listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = c:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
/*新增加的内容*/
(SID_DESC =
(SID_NAME = orcl)
(ORACLE_HOME = c:/oracle/product/10.2.0)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)

报的错误不知道什么问题