[Terraform] Invalid legacy provider address

Problem

When I tried to run terraform plan or terraform apply command, I got following error message:

╷
│ Error: Invalid legacy provider address
│
│ This configuration or its associated state refers to the unqualified provider "aws".
│
│ You must complete the Terraform 0.13 upgrade process before upgrading to later versions.
╵

Cause & Solution

After upgraded to 0.13, Terraform will use the new provider address format. Just run following command to upgrade the provider address format:

$ terraform state replace-provider registry.terraform.io/-/aws hashicorp/aws

Terraform will perform the following actions:

  ~ Updating provider:
    - registry.terraform.io/-/aws
    + registry.terraform.io/hashicorp/aws

Changing 5 resources:

  aws_ecr_repository.kkbook-service
  aws_iam_user_policy_attachment.gitlab-ci
  data.aws_iam_user.gitlab-ci
  aws_acm_certificate.star-kktv-me
  aws_ecr_repository.billing

Do you want to make these changes?
Only 'yes' will be accepted to continue.

Enter a value: yes

Successfully replaced provider for 5 resources.