Syntax error or access violation: 1055 Expression #8 of SELECT list is not in GROUP BY clause and contains nonaggregated column

Question

i tried the CakePHP 3.x \"Bookmaker Tutorial\" and i followed the instruction step by step. Unfortunately, at the end of the first chapter i get the attached error:

Answer 1

This may be the issue related to newer version of MySQL as you said you are using MySQL 5.7.11 So to solve this issue for all your sites see this

https://craftcms.stackexchange.com/questions/12084/getting-this-sql-error-group-by-incompatible-with-sql-mode-only-full-group-by/13662#13662

the answer by community to add the line below

sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION 

in /etc/mysql/my.cnf file & saving it; and after restarting the server

sudo service mysql restart

Would do the work