You have to initialize a Terraform backend before it can be configured.
You need to destroy all of the resources in your Terraform workspace, except for aws_instance.ubuntu[1], which you want to keep. How can you tell Terraform to stop managing that specific resource without destroying it?
When you include a module block in your configuration that references a module from the Terraform Registry, the " version " attribute is required.
Terraform variable names are saved in the state file.