MySQL Foreign Key Error - mysql

Question

I want to create a database and connect it with two database. But I don't know when i create the Foreign Key to the second database (time_shift table) it always result error 150;
Here is the structure of table outlet:
And this is structure of table time_shift:
And this the query to create new table tide_cart:
create table `tide_chart` (
`id` int(10) not null auto_increment primary key,
`date` date null,
`outletId` int(11) not null,
`timeShiftId` int(11) not null,
`value` varchar(255) not null,
unique (`date`, `outletId`, `timeShiftId`),
foreign key (`outletId`) references `outlet`(`id`)
ON update cascade ON delete cascade,
foreign key (`timeShiftId`) references `time_shift`(`id`)
ON update cascade ON delete cascade
) engine=innoDB;
Please explain to me, why i get error when try to make foreign key connect to table time_shift?
Update: add dump export structure table for outlet and time_shift:
CREATE TABLE `outlet` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=5 ;
CREATE TABLE `time_shift` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`time_start` time NOT NULL,
`time_end` time NOT NULL,
`is_active` tinyint(4) NOT NULL DEFAULT '1',
`ref_area` int(11) NOT NULL DEFAULT '1',
PRIMARY KEY (`id`),
KEY `ref_area` (`ref_area`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=7 ;

Answer 1

You need to use the InnoDB engine for your tables. time_shift is using MyISAM.

Answer 2

You must define indexes for outletId and timeShiftId (either UNIQUE or KEY as needed) in order to be able to create a foreign key using that field.