ORA-12154: TNS: 沒法解析指定的鏈接標識符

PLsql鏈接時報錯。

ORA-12154: TNS: 沒法解析指定的鏈接標識符

ORCL2 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST =  192.xxx.xxx.xxx )(PORT = 1521))
    (CONNECT_DATA = 192.xxx.xxx.xxx
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )
錯誤緣由就是 填寫了紅色字體。