t5452-new.scala:30: error: overloaded method value apply with alternatives: ()Queryable[CoffeesTable] (t: Tree)(implicit evidence$2: scala.reflect.ClassTag[CoffeesTable])Nothing (implicit evidence$1: scala.reflect.ClassTag[CoffeesTable])Nothing cannot be applied to (Queryable[CoffeesTable]) Queryable[CoffeesTable]( q.treeFilter(null) ) ^ one error found