terraform-provider-vcd: VMware - Vcloud Air/ Vcloud Director: error: "* Something went wrong: error finding LoginUrl: error parsing error body for non-200 request: EOF"

This issue was originally opened by @EllisFisher1994 as hashicorp/terraform#11455. It was migrated here as part of the provider split. The original body of the issue is below.

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getting the error * Something went wrong: error finding LoginUrl: error parsing error body for non-200 request: EOF

Have variables in a separate file. `# Configure the VMware vCloud Director Provider provider “vcd” { user = “${var.vcd_user}” password = “${var.vcd_pass}” org = “${var.vcd_org}” url = “${var.vcd_url}” vdc = “${var.vcd_vdc}” }

resource “vcd_vapp” “web” { name = “web” catalog_name = “Test-Catalog” template_name = “lampstack-1.10.1-ubuntu-10.04” memory = 2048 cpus = 1

network_name  = "testing_network"

ip            = "10.10.104.160"

metadata {
    role    = "web"
    env     = "staging"
    version = "v1"
}

} `

Can anyone help?