VSAM I/O RETURN CODE IS 108 - RPLFDBWD

Few Errors encountered while playing with VSAMs:

 ACTION ERROR ON TEST.VSAM
** VSAM I/O RETURN CODE IS 108 - RPLFDBWD = X'8408006C'
NUMBER OF RECORDS PROCESSED WAS 0
FUNCTION TERMINATED. CONDITION CODE IS 12

Explanation:You have defined your VSAM with Record length ,say (15 15)
You are trying to do REPRO from a dataset with Different LRECL

Solution: 
Create a flat file with the same LRECL as the VSAM file and use it in REPRO command