error: Failed dependencies: mysql57-community-release conflicts with mysql80-community-release-el7-3.noarch

根据引用\[1\]和引用\[2\]的信息，你在安装MySQL时遇到了错误，错误信息是"Failed dependencies: mysql57-community-release conflicts with mysql80-community-release-el7-1.noarch"。这个错误是由于你已经安装了mysql80-community-release-el7-1.noarch，而mysql57-community-release与之冲突导致的。

根据引用\[3\]的信息，你可以尝试卸载已安装的mysql57-community-release-el7-1.noarch包来解决冲突。你可以使用以下命令来卸载已安装的MySQL包：
rpm -qa | grep mysql //搜索安装的MySQL包
rpm -e --nodeps 搜索出来的包名 //卸载

示例：
\[root@centos8s ~\]# rpm -qa | grep mysql
mysql57-community-release-el7-11.noarch
\[root@centos8s ~\]# rpm -e --nodeps mysql57-community-release-el7-11.noarch

卸载完成后，你可以重新安装MySQL，这次应该不会再报错了。
#### 引用[.reference_title]
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