Terraform，在污点上出现“模块根目录没有资源”错误

The module root has no resources在污点上出现错误。我试图污染几个null_resources。这是代码块null_resource.provision_first：

resource "null_resource" "provision_first" {

    connection {

        user = "root"
        type = "ssh"
        private_key = "${file("./.ssh/prv_key")}"
        host = "${element(digitalocean_droplet.droplet.*.ipv4_address, count.index)}"
        timeout = "2m"
   }

   provisioner "remote-exec" {
       inline = [

           # install salt-minion
           "wget -O - http://bootstrap.saltstack.org | sudo sh"
       ]
    }

    provisioner "file" {

         # copy minion file
        source = "../salt/prod/minion"
        destination = "/etc/salt/minion"
    }

   provisioner "file" {

       # copy top.sls and init.sls files
       source = "../salt/roots"
       destination = "/etc/salt/roots"
   }

   provisioner "remote-exec" {
       inline = [

          # tell salt-minion to look for the state tree in
          # the local file system, with the --local flag.
         "salt-call --local state.highstate -l debug"
       ]
   }

}

这是代码块null_resource.provision_last：

resource "null_resource" "provision_last" {
    connection {
        user = "root"
        type = "ssh"
        private_key = "${file("./.ssh/prv_key")}"
        host = "${element(digitalocean_droplet.droplet.*.ipv4_address, count.index)}"
        timeout = "2m"
    }

   provisioner "file" {
       source = "../site/index.html"
       destination = "/usr/nginx/html/site/index.html"
   }

   provisioner "file" {
       source = "../site/assets"
       destination = "/usr/nginx/site"
   }

  provisioner "remote-exec" {
      inline = [
          "mv /usr/nginx/html/site/build/index.html /usr/nginx/html/site/index.html"
      ]
   }

}

我无法弄清楚我做错了什么。据我所知，它应该能够污染这些资源中的每一个。这就是我在命令行上所做的：terraform taint null_resource.provision_last和terraform taint null_resource.provision_first