Unsupported argument: An argument named "x" is not expected here Terraform Origin: Platform & cloud OSI layer 7 · Application Last updated 5 Nov 2026

Terraform: Error: Unsupported argument — An argument named "enable_foo" is not expected here

A resource/module block uses an argument the provider/module schema doesn't have.

Exact message you may see Error: Unsupported argumentAn argument named "enable_foo" is not expected hereError: Unsupported argument: An argument named "acl" is not expected hereError: Unsupported argument ... is not expected here. Did you meanError: Unsupported argument An argument named "versioning" is not expected here
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Seen on: Terraform

Meaning

Typos, an argument renamed/removed in a newer provider version (e.g. AWS provider v4/v5 split S3 bucket settings into separate resources), or placed in the wrong block. Check the provider docs for your version, terraform providers schema -json, and the module's variables (for modules use only declared input variables).

Common causes

  • Typo in the argument name
  • Provider upgrade moved/removed the argument
  • Argument belongs to a nested block
  • Module doesn't declare that variable
  • Using docs for another provider version

⚡ Quick fix

  1. Check provider docs for your pinned version
  2. Move to the new resource/nested block
  3. Add the variable to the module or fix the name

Detailed fix by platform

Terraform

  1. terraform version; terraform providers schema -json | jq '.provider_schemas'

How to diagnose

  1. Version — Provider version?
  2. Docs — Matching version?
  3. Module — Variable exists?

🔧 Still not fixed?

Many errors look alike. If the steps above didn’t solve it, one of these is probably what you’re facing:

Where this error sits

Origin: Platform & cloud. Errors that are often confused with or caused by this one (click to open):

Duplicate resource configuration / variable declaration — Terraform: Error: Duplicate resource "aws_s3_bucket" configuration — A aws_s3_bucket resource named "logs" was already declared at main.tf:1 (Terraform)Duplicate resource co…Invalid AWS Region — Terraform: Error: Invalid AWS Region: us-east-3 / Error: configuring Terraform AWS Provider: validating provider credentials: operation error STS: GetCallerIdentity (Terraform)Invalid AWS RegionInvalid character / Argument or block definition required — Terraform: Error: Invalid character — This character is not used within the language / Error: Argument or block definition required (Terraform)Invalid character / A…Missing required argument — Terraform: Error: Missing required argument — The argument "ami" is required, but no definition was found (Terraform)Missing required argu…No valid credential sources found (AWS provider) — Terraform: Error: No valid credential sources found — failed to refresh cached credentials, no EC2 IMDS role found / Error: configuring Terraform AWS Provider: no valid credential sources (Terraform)No valid credential s…UnauthorizedOperation / AccessDenied during Terraform apply — Terraform: Error: creating EC2 Instance: UnauthorizedOperation: You are not authorized to perform this operation. User: arn:aws:iam::123:user/ci is not authorized to perform: ec2:RunInstances (Terraform)UnauthorizedOperation…Unsupported attribute: This object does not have an attribute named — Terraform: Error: Unsupported attribute — This object has no argument, nested block, or exported attribute named "foo" (Terraform)Unsupported attribute…Unsupported block type: Blocks of type "x" are not expected here — Terraform: Error: Unsupported block type — Blocks of type "versioning" are not expected here (Terraform)Unsupported block typ…Unsupport…

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