managed identity principal id

variable "managed_identity_principal_id" {
  type    = string
  default = null
}

variable "resource_group_name" {
  type    = string
  default = null
}

error: creating Kubernetes Cluster

Terraform AKS, azurerm_resource_group, azurerm_kubernetes_cluster, azurerm_role_assignment, azurerm_virtual_network, azurerm_dns_zone