title: Terraform Unsupported block type error for "aws_cloudformation_stack"
body: <p>I'm setting "Deploying to AWS ECR/ECS(below link)",and I finish 1-4.
  <a href="https://circleci.com/docs/2.0/ecs-ecr/#section=deployment" rel="nofollow noreferrer">https://circleci.com/docs/2.0/ecs-ecr/#section=deployment</a></p>
  
  <pre><code>$ terraform plan
  
  Error: Unsupported block type
  
    on terraform.tf line 30, in resource "aws_cloudformation_stack" "vpc":
    30:   parameters {
  
  Blocks of type "parameters" are not expected here. Did you mean to define
  argument "parameters"? If so, use the equals sign to assign it a value.
  </code></pre>
  
  <p>This is my code.</p>
  
  <pre><code>resource "aws_cloudformation_stack" "vpc" {
    name = "${local.aws_vpc_stack_name}"
    template_body = "${file("cloudformation-templates/public-vpc.yml")}"
    capabilities = ["CAPABILITY_NAMED_IAM"]
    parameters {
      ClusterName = "${local.aws_ecs_cluster_name}"
      ExecutionRoleName = "${local.aws_ecs_execution_role_name}"
    }
  }
  </code></pre>
  
  <p>What should I do to successfully "terraform plan" ?
  Thanks,</p>