SLD Error

Hi Experts,

I installed PI 7.1 newly and after successful completion of simple file to file interface I am getting the below error in communication channel while testing. need your help.

"Error:com.sap.engine.interfaces.messaging.api.exception.ConfigException:Some of the IS access information is not available. SLDAccess property may be set to true, but SLD is not available"

Thanks in advance,

---Naresh