[Koha] Migrate transaction data

[gk]

Dear Sir/Madam,

I tried to export current circulation data from my legacy software to 
koha 3.8 but not successful.  I tried LOAD DATA LOCAL INFILE 
'<PATH>/transactions.txt' INTO TABLE issues; and got the following error:
ERROR 1452 (23000): Cannot add or update a child row: a foreign key 
constraint fails (`koha_library`.`issues`, CONSTRAINT `issues_ibfk_1` 
FOREIGN KEY (`borrowernumber`) REFERENCES `borrowers` (`borrowernumber`) 
ON UPDATE CASCADE).
Please help me port current circulation data to koha.
-- 

With Warm Regards

*Gopalakrishna*
Librarian
*BMS Institute of Technology*
Avalahalli, Dodballapur Main Road,
Yelahanka, BANGALORE-560064
080-65369469
9741898674