[Terraform Issue] Blocks of type “precondition” are not expected here, or Optional object type attributes are experimental.

Nếu bạn run terraform plan, apply nếu bị lỗi dưới

╷
│ Error: Unsupported block type
│ 
│   on .terraform/modules/eks-windows.eks/modules/_user_data/main.tf line 7, in resource "null_resource" "validate_cluster_service_cidr":
│    7:     precondition {
│ 
│ ╷
│ Error: Unsupported block type
│ 
│   on .terraform/modules/eks-windows.eks/modules/_user_data/main.tf line 7, in resource "null_resource" "validate_cluster_service_cidr":
│    7:     precondition {
│ 
│ Blocks of type "precondition" are not expected here.
╵
╵

Hoặc bị lỗi dưới:

╷
│ Error: Optional object type attributes are experimental
│ 
│   on .terraform/modules/eks-windows.eks/modules/_user_data/variables.tf line 86:
│   86: variable "cloudinit_pre_nodeadm" {
│ 
│ This feature is currently an opt-in experiment, subject to change in future
│ releases based on feedback.
│ 
│ Activate the feature for this module by adding
│ module_variable_optional_attrs to the list of active experiments.
╵

Thì bạn cần update terraform cli version.