Error: Missing resource instance key

Error: Missing resource instance key

│ Because aws_ecs_task_definition.your_task has "count" set, its
│ attributes must be accessed on specific instances.

Review security_group_id in aws_security_group_rule

Error: Unexpected resource instance key
Error: Invalid reference
count

See also

• Terraform LB: aws_lb: aws_lb_listener, aws_lb_listener_certificate, aws_lb_listener_rule, aws_lb_target_group, aws_lb_target_group_attachment, load_balancer_type, aws lb listener: default action, aws load balancer policy
• Terraform Security Group: aws_security_group, aws_security_group_rule, aws_network_interface_sg_attachment