Costing Run Error

Dear Gurus,

Am basically a MM consultant.We are testing PP in my company now.I have configured PP ,I have configured Product Cost Planning by refering J18-building block.while executing costing run in CK40n,it is showing the following error:

Cost Element 40050010 is not assigned to Cost Component

Cost Component Split Costed with Value of Zero

Cost Estimation for Material ki/plant 000 is incorrect

Plz tel what i have missed.....my FI consultant also dont know about this

thx in adv..........