MalformedPolicyDocumentException:

╷
│ Error: MalformedPolicyDocumentException: Policy contains a statement with one or more invalid principals.
│
│   with module.cmk.aws_kms_key.this,
│   on .terraform/modules/cmk/modules/kms/cmk.tf line 7, in resource "aws_kms_key" "this":
│    7: resource "aws_kms_key" "this" {
│

See also

• terraform plan: [ -refresh-only | -lock=false | -target | -var-file | will be created | --help], Terraform plan errors, Terraform plan examples, Terraform plan execution errors, (known after apply)
• Terraform AWS resources: IAM, Net, EC2, ECS, ECR, S3, Route53, ACM, CloudWatch, CloudFront SES, RDS, DLM