title: No valid credential sources found for AWS Provider when using environment vars
body: <p>I have a terraform script that works locally but when I publish to Terraform Cloud it errors as below:</p>
  
  <pre><code>Error: No valid credential sources found for AWS Provider.
          Please see https://terraform.io/docs/providers/aws/index.html for more information on
          providing credentials for the AWS Provider
   on main.tf line 1, in provider "aws":
    1: provider "aws" {
  </code></pre>
  
  <p>The i have set the same variables in the same way on other successfully working deployments but it doesn't seem to be pulling the credentials through.</p>
  
  <p>Any direction on troubleshooting would be appreciated</p>
  
  <p><a href="https://i.stack.imgur.com/LoAnq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LoAnq.png" alt="Variables setting"></a></p>