"The worker is not assigned to a position for this pay period. Assign the worker to a position to generate earnings." in AX 2012 r3

Hi frnds,

When i click the Earnings statement Lines to create a Earning statement in Payroll module that time i got some struck with this below mentioned error. If any one know plz let me know.

"The worker is not assigned to a position for this pay period. Assign the worker to a position to generate earnings." in AX 2012 R3.

But i assigned Worker to that particular Position.

Regards,

Subbu