mac上可能勾選了軟件自動更新，然后MAMP PRO 升級了。

升級了之后，mysql啟動就出問題了，看報錯日志：

InnoDB: The error means the system cannot find the path specified.

InnoDB: If you are installing InnoDB, remember that you must create

InnoDB: directories yourself, InnoDB does not create them.

InnoDB: Error: could not open single-table tablespace file ./wordpress/wp_term_taxonomy.ibd

InnoDB: We do not continue the crash recovery, because the table may become

InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.

InnoDB: To fix the problem and start mysqld:

InnoDB: 1) If there is a permission problem in the file and mysqld cannot

InnoDB: open the file, you should modify the permissions.

InnoDB: 2) If the table is not needed, or you can restore it from a backup,

InnoDB: then you can remove the .ibd file, and InnoDB will do a normal

InnoDB: crash recovery and ignore that table.

InnoDB: 3) If the file system or the disk is broken, and you cannot remove

InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf

InnoDB: and force InnoDB to continue crash recovery here.

mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended

很迷茫，百度搜了一圈，沒什么好的方案。轉google，終于看到一個：

https://stackoverflow.com/questions/40904630/mamp-wont-start-mysql-server-mac

經測試，執行以下命名，刪除這些東西，就可以重啟mysql了

$rm/Library/Application\Support/appsolute/MAMP\PRO/db/mysql56/ib_logfile0$rm/Library/Application\Support/appsolute/MAMP\PRO/db/mysql56/ib_logfile1$rm/Library/Application\Support/appsolute/MAMP\PRO/db/mysql56/ibdata1

如果你現在鏈接數據庫沒問題了，那就不要往下看了。

——————————————————————————————

接著用數據庫可視化工具打開mysql，我用的是MySQLworkbench，發現有些不久前建立的表出問題了。

于是利用MySQLworkbench導出數據。然后清空原先的數據庫。

rm -r /Library/Application\ Support/appsolute/MAMP\ PRO/db/mysql56

目錄就是上面的這個。

重新導入數據建立schema，一切OK。

總結

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