How to fix Error: Unsupported block type in Terraform

# Check current provider versions in state
terraform state show

# Or check in your configuration
grep -n "provider|required_providers" *.tf

resource "aws_s3_bucket" "example" {
  bucket = "my-bucket"

  tags {
    Name = "example"
  }
}

resource "aws_s3_bucket" "example" {
  bucket = "my-bucket"

  tags = {
    Name = "example"
  }
}

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 5.0"  # Pin to 5.x where inference_accelerator was still supported
    }
  }
}

terraform init -upgrade
terraform validate

resource "aws_ecs_task_definition" "example" {
  family = "my-task"

  inference_accelerator {
    device_name = "my-accelerator"
  }
}

resource "aws_ecs_task_definition" "example" {
  family = "my-task"
  # inference_accelerator no longer supported in AWS provider 6.0+
  # Use container_definitions instead
}

# Validate all HCL syntax
terraform validate

# Format files to standard style
terraform fmt -recursive

# Check for other issues
terraform plan (don't apply yet)

# Check module source and version
grep -r "source|version" *.tf | grep "module"

module "example" {
  source = "terraform-aws-modules/example/aws"
  version = "~> 5.0"  # Update to version compatible with AWS provider 6.0+
}

terraform init -upgrade