Error: “could not initailize master info structure” while doing Master Slave Replication in MySQL

TRY TO RESET IT, IT DOES MAGIC! ON SLAVE THE SLAVE MYSQL COMMAND TYPE:

RESET SLAVE;

THEN TRY AGAIN:

CHANGE MASTER TO MASTER_HOST='10.1.100.1', MASTER_USER='slave_user', MASTER_PASSWORD='slave_password', MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS=451228;
mysql> START SLAVE;