title: Terraform vsphere_resource_pool on connected standalone ESXi host - error fetching resource pool
body: <p>I'm pretty much a noob with terraform and the vsphere provider, and I'm bumping up into all the noob problems.</p>
  
  <p>We're hoping to land a VM on a managed standalone (not clustered) ESXi 65 host connected to vsphere, but I can't get the resource_pool resource statement correct and, as shown, I got a little desperate and tried all permutations I could think of:</p>
  
  <pre><code>provider "vsphere" {
    vsphere_server = "vcs1.fq.dn"
    alias = "prod"
    allow_unverified_ssl = true
  }
  
  data "vsphere_datacenter" "prod" {
    provider = vsphere.prod
    name = "PROD Datacenter"
  }
  
  data "vsphere_resource_pool" "vmhost23" {
    provider = vsphere.prod
    datacenter_id = data.vsphere_datacenter.prod.id
  
  #  name          = "vmhost23/Resources"
  #  name          = "vmhost23/resources"
  #  name          = "vmhost23/"
  #  name          = "/"
    name          = "/Resources"
  #  name          = "/resources"
  
  #  name          = "vmhost23/Resources/"
  #  name          = "vmhost23/resources/"
  #  name          = "vmhost23/"
  #  name          = "/"
  #  name          = "/Resources/"
  #  name          = "/resources/"
  
  #  name          = "vmhost23.fq.dn"
  #  name          = "vmhost23.fq.dn/"
  #  name          = "vmhost23.fq.dn/Resources/"
  #  name          = "vmhost23.fq.dn/Resources"
  #  name          = "vmhost23.fq.dn/resources/"
  #  name          = "vmhost23.fq.dn/resources"
  
  }
  </code></pre>
  
  <p>unfortunately, there's just no joy:</p>
  
  <pre><code>data.vsphere_datacenter.prod: Refreshing state...
  data.vsphere_datastore.vmhost23: Refreshing state...
  data.vsphere_resource_pool.vmhost23: Refreshing state...
  data.vsphere_network.DMZ-prod: Refreshing state...
  data.vsphere_datacenter.dc: Refreshing state...
  data.vsphere_datastore.datastore: Refreshing state...
  data.vsphere_compute_cluster.cluster: Refreshing state...
  data.vsphere_datastore_cluster.datastore_cluster: Refreshing state...
  data.vsphere_network.TEST-APP: Refreshing state...
  data.vsphere_virtual_machine.template: Refreshing state...
  :
  vsphere_virtual_machine.prdsat: Refreshing state... [id=42190b77-a6a7-8693-e05f-c11528d1afa4]
  
  Error: error fetching resource pool: resource pool '/Resources' not found
  
    on vm-prdsplidx01x.tf line 4, in data "vsphere_resource_pool" "vmhost23":
     4: data "vsphere_resource_pool" "vmhost23" {
  </code></pre>