ORA-12154: TNS: 无法解析指定的连接标识符

PLsql连接时报错。

ORA-12154: TNS: 无法解析指定的连接标识符

ORCL2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.xxx.xxx.xxx )(PORT = 1521))
(CONNECT_DATA = 192.xxx.xxx.xxx
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
错误原因就是 填写了红色字体。