innobackupex Error: Unsupported server version: '5.7.23'.？

innobackupex遇到的错误信息如下：

[mysql@SZ1-LW8600211 mysql]$ more /backup/log/mysql/innobackup_201811161018.18839.tmp
181116 10:18:24 innobackupex: Starting the backup operation

IMPORTANT: Please check that the backup run completes successfully.

       At the end of a successful backup run innobackupex
       prints "completed OK!".

181116 10:18:25 version_check Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_group=xtrabackup;mysql_socket=/tmp/mysql
.sock' as 'root' (using password: YES).
181116 10:18:25 version_check Connected to MySQL server
181116 10:18:25 version_check Executing a version check against the server...
181116 10:18:25 version_check Done.
181116 10:18:25 Connecting to MySQL server host: localhost, user: root, password: set, port: 0, socket: /tmp/mysql.sock
Error: Unsupported server version: '5.7.23'. Please report a bug at https://bugs.launchpad.net/percona-xtrabackup