'import (8) ended with errors' i got this error

Hi experts,

while transporting request no from devlopment to production the following error is displayed in SE09 TCODE.

IMPORT (8) ENDED WITH ERRORS. More details of this error message is

transport request : glpk901850

system :glp

tp path : tp

version and release :372.04.29 700

main import

ended with return code => 8.

how to solve this error.

pls help me in this