Please fill out the sections below to help us address your issue. 2.0.0-preview.3 ### Version of Go (`go version`)? go version go1.10 darwin/amd64 ### What issue did you see? InvalidSignatureException: Credential should be scoped to correct service: 'application-autoscaling'. ### Steps to reproduce If you have have an runnable example, please include it. ```go cfg, err := external.LoadDefaultAWSConfig() if err != nil { panic(err) } cfg.Region = endpoints.UsWest2RegionID scale := applicationautoscaling.New(cfg) req := scale.RegisterScalableTargetRequest(&applicationautoscaling.RegisterScalableTargetInput{ MaxCapacity: aws.Int64(200), MinCapacity: aws.Int64(90), ResourceId: aws.String("service/foo/bar"), ScalableDimension: applicationautoscaling.ScalableDimensionEcsServiceDesiredCount, ServiceNamespace: applicationautoscaling.ServiceNamespaceEcs, }) _, err = req.Send() if err != nil { panic(err) } ```