Getting variable from feeder and setting to Session

im trying to use a feeder to set a attribute to session

This is a config file, the test uses this file to setup up variables that will be used in the test.

private val csvFeeder = csv(“simulations\CommPayPerfTest\Data\ConfigSettings.csv”)

def configureSession(session: Session) = {

feed(csvFeeder)

.exec(session => {
val EntityId = session(“EntityId”).as[String]

session
})

session.set(“DealerGroupId”, DealerGroupId)
.set(“SiteCode”, SiteCode)
.set(“EntityId”, (session(“EntityId”).as [String]))

}

in running it fails with “no attribute with EntitiyId is defined”

any ideas what im doing wrong?