Unable to access output attributes

[ameyaptk]

I'm unable to access attributes from terraform.tfstate for a service account resource I created. The attribute exists and has a value.

module1/main.tf

resource "google_service_account" "gsvc_account" {
  account_id   = "${var.account_id}"
  display_name = "${var.display_name}"
  project = "${var.project}"
}

output "account_id" {
  value = "${google_service_account.gsvc_account.account_id}"
}

output "name" {
  value = "${google_service_account.gsvc_account.name}"
}

After the module is run, a terraform.tfstate is created

root/main.tf

module "gsvc_tf_billing" {
  source = "<path>"

  account_id = "gsvc-tf-billing"
  project = "${var.project_id}"
}

output "gsvc_tf_billing_id" {
  value = "${module.gsvc_tf_billing.account_id}"
}

output "gsvc_tf_billing_name" {
 value = "${module.gsvc_tf_billing.name}"
 }

terraform.tfstate

{
  "version": 4,
  "terraform_version": "0.12.0",
  "serial": 4,
  "lineage": "aaa-bbb-ccc",
  "outputs": {
    "gsvc_tf_billing": {
      "value": "gsvc-tf-billing",
      "type": "string"
    },
    "gsvc_tf_billing_id": {
      "value": "gsvc-tf-billing",
      "type": "string"
    },
    "gsvc_tf_billing_name": {
      "value": "projects/proj-xxx/serviceAccounts/[email protected]",
      "type": "string"
    }
  },

<ouput redacted>

As you can see, there is an output field gsvc_tf_billing_name. When I try to access this attribute via another module, it giving me an error

module2/main.tf

data "terraform_remote_state" "gsvc_accounts" {
  backend = "local"
  config = {
    path = "<path>/terraform.tfstate"             // path to the above terraform.tfstate. confirmed correct
   }
}

module "iam_member_01" {
  source  = "<path>/module"

  project = "${var.project_id}"
  role = "billing.admin"
  member = "${data.terraform_remote_state.gsvc_accounts.gsvc_tf_billing_name}"
}

Error:

Error: Unsupported attribute

  on main.tf line 21, in module "iam_member_01":
  21:   member = "${data.terraform_remote_state.gsvc_accounts.gsvc_tf_billing_name}"

This object has no argument, nested block, or exported attribute named
"gsvc_tf_billing_name".

[ameyaptk]

I don't see path:root in terraform.tfstate above. Not sure why.

[rileykarson]

I can't see anything obviously wrong. This appears to be an issue with the remote state, and not something specific to the Google provider. Do you mind filing at https://github.com/hashicorp/terraform?

[ameyaptk]

Figured this out. Turns out in module2/main.tf, I had to access the attribute as

member = "${data.terraform_remote_state.gsvc_accounts.outputs.gsvc_tf_billing_name}"

[ghost]

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