mysql foreign key constraint error

CREATE TABLE `faculty_personal_info` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `Designation` varchar(30) NOT NULL,
  `First_Name` varchar(20) NOT NULL,
  `Middle_Name` varchar(20) DEFAULT NULL,
  `Last_Name` varchar(20) NOT NULL,
  `Date_of_Birth` date NOT NULL,
  `Address` varchar(100) NOT NULL,
  `City` varchar(30) NOT NULL,
  `Pincode` int(11) NOT NULL,
  `Email` varchar(40) NOT NULL,
  `Contact_Number` int(11) NOT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8

CREATE TABLE `faculty_edu_qual` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `faculty_id` int(11) NOT NULL,
  `Degree` varchar(15) NOT NULL,
  `Specialisation` varchar(40) NOT NULL,
  `University` varchar(40) NOT NULL,
  `Grade` varchar(10) NOT NULL,
  `Year_of_Passing` int(11) NOT NULL,
  PRIMARY KEY (`id`) USING BTREE,
  KEY `FK_faculty_edu_qual_faculty_personal_info` (`faculty_id`),
  CONSTRAINT `FK_faculty_edu_qual_faculty_personal_info` FOREIGN KEY (`faculty_id`) REFERENCES `faculty_personal_info` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8

ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint f
ails (`faculty_student`.`faculty_edu_qual`, CONSTRAINT `FK_faculty_edu_qual_facu
lty_personal_info` FOREIGN KEY (`faculty_id`) REFERENCES `faculty_personal_info`
 (`id`) ON DELETE CASCADE ON UPDATE CA)