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Your site's DNS settings are using a custom subdomain, www.daoxuan.cc, that is set up as an A record. We recommend you change this to a CNAME record pointing to dx2331lxz.github.io. For more information, see documentation (InvalidARecordError).

出现这种报错时候的解决方案是：以CNAME添加两个解析，一个@，一个www都让其解析到xxx.github.io就可以了