Unity与Gnome3不能共存吗

Postfix configuration was untouched. If you need to make changes, edit
/etc/postfix/main.cf (and others) as needed. To view Postfix configuration
values, see postconf(1).

After modifying main.cf, be sure to run '/etc/init.d/postfix reload'.

Running newaliases
newaliases: warning: valid_hostname: invalid character 231(decimal): ??????
newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: ??????
dpkg：处理 postfix (--configure)时出错：
子进程 已安装 post-installation 脚本 返回了错误号 75
正在处理用于 libc-bin 的触发器...
ldconfig deferred processing now taking place
在处理时有错误发生：
postfix
E: Sub-process /usr/bin/dpkg returned an error code (1)
不明白是什么情况。不过就是出现这种情况软件还是安装的起。！！！

Postfix configuration was untouched. If you need to make changes, edit
/etc/postfix/main.cf (and others) as needed. To view Postfix configuration
values, see postconf(1).

After modifying main.cf, be sure to run '/etc/init.d/postfix reload'.

Running newaliases
newaliases: warning: valid_hostname: invalid character 231(decimal): ??????
newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: ??????
dpkg：处理 postfix (--configure)时出错：
子进程 已安装 post-installation 脚本 返回了错误号 75
正在处理用于 libc-bin 的触发器...
ldconfig deferred processing now taking place
在处理时有错误发生：
postfix
E: Sub-process /usr/bin/dpkg returned an error code (1)
不明白是什么情况。不过就是出现这种情况软件还是安装的起。！！！