报错内容
171208 16:15:54 mysqld_safe Logging to '/Applications/MAMP/logs/mysql_error.log'.
171208 16:15:54 mysqld_safe Starting mysqld daemon with databases from /Library/Application Support/appsolute/MAMP PRO/db/mysql56
2017-12-08 16:15:54 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-12-08 16:15:54 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled
2017-12-08 16:15:54 0 [Note] /Applications/MAMP/Library/bin/mysqld (mysqld 5.6.35) starting as process 4107 ...
2017-12-08 16:15:54 4107 [Warning] Setting lower_case_table_names=2 because file system for /Library/Application Support/appsolute/MAMP PRO/db/mysql56/ is case insensitive
2017-12-08 16:15:54 4107 [Note] Plugin 'FEDERATED' is disabled.
/Applications/MAMP/Library/bin/mysqld: Table 'mysql.plugin' doesn't exist
2017-12-08 16:15:54 4107 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
2017-12-08 16:15:54 4107 [Note] InnoDB: Using atomics to ref count buffer pool pages
2017-12-08 16:15:54 4107 [Note] InnoDB: The InnoDB memory heap is disabled
2017-12-08 16:15:54 4107 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-12-08 16:15:54 4107 [Note] InnoDB: Memory barrier is not used
2017-12-08 16:15:54 4107 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-12-08 16:15:54 4107 [Note] InnoDB: Using CPU crc32 instructions
2017-12-08 16:15:54 4107 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2017-12-08 16:15:54 4107 [Note] InnoDB: Completed initialization of buffer pool
2017-12-08 16:15:54 4107 [Note] InnoDB: Highest supported file format is Barracuda.
2017-12-08 16:15:54 4107 [Note] InnoDB: 128 rollback segment(s) are active.
2017-12-08 16:15:54 4107 [Note] InnoDB: 5.6.35 started; log sequence number 133313511
2017-12-08 16:15:54 4107 [Note] RSA private key file not found: /Library/Application Support/appsolute/MAMP PRO/db/mysql56//private_key.pem. Some authentication plugins will not work.
2017-12-08 16:15:54 4107 [Note] RSA public key file not found: /Library/Application Support/appsolute/MAMP PRO/db/mysql56//public_key.pem. Some authentication plugins will not work.
2017-12-08 16:15:54 4107 [Note] Server hostname (bind-address): '127.0.0.1'; port: 8889
2017-12-08 16:15:54 4107 [Note] - '127.0.0.1' resolves to '127.0.0.1';
2017-12-08 16:15:54 4107 [Note] Server socket created on IP: '127.0.0.1'.
2017-12-08 16:15:54 4107 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
171208 16:15:54 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended
解决办法1
一、打开MAMP PRO，打开菜单栏File->Edit Template->MySQL->5.6.35，这时打开了一个文本，找到[mysqld]，注意带上中括号，在这行下面加一行“innodb_force_recovery = 1”；
二、启动mySQL，成功后再关闭；
三、重新打开那个文本，删除添加的那一行；
四、再打开mySQL，完毕。
解决办法2
如果解决办法一不可以的话 就使用这个办法 找到mamp pro相关的mysql文件 替换mysql中的所有文件即可解决(可能mysql中文件被毁坏了)
mysql需要文件 地址:http://download.csdn.net/download/resilient/10153437
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版权声明：本文为CSDN博主「芝麻开门2015」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/resilient/article/details/78769519
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