Invalid default value for timestamp field in MySQL 5.7

That is because of server SQL Mode - NO_ZERO_DATE.

From the reference:

NO_ZERO_DATE - In strict mode, don't allow '0000-00-00' as a valid date. You can still insert zero dates with the IGNORE option. When not in strict mode, the date is accepted but a warning is generated.

How to solve this if you still want a '0000-00-00' as default value?

1. open file: /etc/mysql/mysql.conf.d/mysqld.cnf in an editor of your choice.

2. Look for: sql_mode, it will be somewhere under [mysqld].

3. and set sql_mode to the following:

NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

4. Save and then restart mysql service by doing:

5. sudo service mysql restart

Reference

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