检查listener.ora文件 ; ORACLE_HOME> \admin\NETWORK 目录具有以下值：

Check if listener.ora file under the <ORACLE_HOME>\admin\NETWORK directory has the following value:

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )