"Error: idna: disallowed rune U+002F" Encountered When Using the TFE Provider

Problem

When executing Terraform configuration code that includes the use of the tfe provider, you encounter the error below during the plan phase:

Error: idna: disallowed rune U+002F
with provider["registry.terraform.io/hashicorp/tfe"]
on XXX.tf line X, in provider "tfe":
 provider "tfe" {

Cause

• This occurs when the value for the hostname argument, or TFE_HOSTNAME environment variable set for use by the tfe provider, contains a / character, such as at the end of the address entered.

Solution:

• Remove the / from the address that's set for the hostname argument, or TFE_HOSTNAME environment variable.

  • Example app.terraform.io or tfe.domain.com

Additional Information

• https://registry.terraform.io/providers/hashicorp/tfe/latest/docs#hostname