Unsupported path error when creating namespace in HashiCorp

When trying to create a namespace at path, it returns the following error.

$ vault namespace create ns1
Error creating namespace: Error making API request.

URL: PUT http://127.0.0.1:8200/v1/sys/namespaces/ns1
Code: 404. Errors:

  • 1 error occurred:
    * unsupported path

Creating new secret engines and putting new kv entries are working well.

Namespaces are an enterprise feature. What does vault status show?

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