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在mysqlserver安装的最后一步（apply configurations）中，我遇到了一个奇怪的错误。我搞不懂。日志如下：

Attempting to add a Windows Firewall rule with command: netsh.exe advfirewall firewall add rule name="Port 3306" protocol=TCP localport=3306 dir=in action=allow
Ok.

Successfully added the Windows Firewall rule.
Ended configuration step: Updating Windows Firewall rules

Beginning configuration step: Adjusting Windows service
Attempting to grant Network Service require filesystem permissions.
Granted permissions.
Adding new service
New service added
Ended configuration step: Adjusting Windows service

Beginning configuration step: Initializing Database
Attempting to run MySQL Server with --initialize-insecure option...
Starting process for MySQL Server 8.0.11...
Starting process with command: C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 8.0\my.ini" --console --initialize-insecure=on...
2018-06-25T21:06:16.705865Z 0 [ERROR] [MY-011071] [Server] Unknown suffix '.' used for variable 'lower_case_table_names' (value '0.0')
2018-06-25T21:06:16.706023Z 0 [ERROR] [MY-011071] [Server] C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe: Error while setting value '0.0' to 'lower_case_table_names'
2018-06-25T21:06:16.706780Z 0 [ERROR] [MY-010119] [Server] Aborting
2018-06-25T21:06:16.707053Z 0 [Note] [MY-010120] [Server] Binlog end
Process for mysqld, with ID 6372, was run successfully and exited with code 1.
Failed to start process for MySQL Server 8.0.11.
Database initialization failed.
Ended configuration step: Initializing Database

这里怎么了？