问Terraform - aws_route_tables

EN

Error reading config for aws_route[rt_tgw]: parse error at 1:40: expected "}" but found "["

variable "environment_group" {
  description = "Name given to the resource"
  default = "test"
}

variable "create_tgw_route" {
  description = "Toggle to create the transit gateway route within the VPC route table"
  default = true
}

variable "tgw_route_cidr" {
  description = "Specify the destination cidr block for the transit gateway route within the VPC route table"
  default = "10.0.0.0/8"
}

variable "transit_gateway_id" {
  default = ""
  description = "Temporary variable that should be replaced by a data lookup in due time"
}

data "aws_vpc" "vpc_id" {
  count = "${var.create_tgw_route ? 1 : 0}"

  filter {
    name   = "tag:Name"
    values = ["vpc-${var.environment_group}"]
  }
}

data "aws_route_tables" "rtb" {
  count = "${var.create_tgw_route ? 1 : 0}"

  vpc_id = "${data.aws_vpc.vpc_id.id}"

  filter {
    name   = "tag:Name"
    values = ["rt-${var.environment_group}-*"]
  }
}

resource "aws_route" "rt_tgw" {
  count = "${var.create_tgw_route ? 1 : 0}"

  route_table_id            = "${tolist(data.aws_route_tables.rtb.ids)[count.index]}"
  destination_cidr_block    = "${var.tgw_route_cidr}"
  transit_gateway_id        = "${var.transit_gateway_id}"
}