Reading and internal table

I have the following code but it doens't like this line. Hod do i need to code this corectly

LOOP AT WA_DATAPACKAGE INTO WA_DATAPACKAGE_LN.

wa_TABIX = SY-TABIX.

READ table DATA_PACKAGE INTO WA2_DATAPACKAGE_LN

WITH KEY

DOC_NUMBER = WA_DATAPACKAGE_LN-DOC_NUMBER

S_ORD_ITEM = WA_DATAPACKAGE_LN-S_ORD_ITEM

WA_DATAPACKAGE_LN--sched_line NE sched_line

dsdel_date = WA_DATAPACKAGE_LN-REQ_DATE.