在Mac上用Navicat连接Oracle的时候总是提示：ORA-21561: OID generation failed

1.在终端上输入：$ hostname

localhost

2.查看/etc/hosts文件： $ cat /etc/hosts

127.0.0.1   localhost
255.255.255.255 broadcasthost
::1             localhost 
127.0.0.1     activate.xmind.net
127.0.0.1     practivate.xmind.net
127.0.0.1     lm.licenses.xmind.net
127.0.0.1     lmlicenses.xmind.net
127.0.0.1     www.xmind.net
127.0.0.1     na1r.services.xmind.net
127.0.0.1     activate.xmind.net
127.0.0.1     practivate.xmind.net
127.0.0.1     lm.licenses.xmind.net
127.0.0.1     lmlicenses.xmind.net
127.0.0.1     www.xmind.net
127.0.0.1     na1r.services.xmind.net
0.0.0.0 account.jetbrains.com127.0.0.1 windows10.microdone.cn

3.保持hostname与hosts文件中127.0.0.1对应的名称一致即可！修改hostname命令

sudo scutil --set HostName yourname