Cannot include class file workflowservice.*

[cross_fingers@xxxxxxxxx]

Hello!
       We are trying to run source code but when we try to compile it gives 
an error. It says that it cannot include workflowservive.* package. We also 
have tried to find the package in the source but we cannot. Can you help us 
in this regard. We are having trouble in it. I will be waiting for your 
reply.........