Invalid provider configuration and Missing required argument

[lenahorsley]

I tried to deploy an ARO cluster using the instructions in the README file of this repo, but saw two errors.
Steps to reporduce

1. Clone the repo

2. Log into the Azure cli

3. Export variables
   export TF_VAR_subscription_id="$(az account show --query id --output tsv)"
   export TF_VAR_cluster_name="$(whoami)-aro"
   export TF_VAR_aro_version="$(az aro get-versions -l eastus --query '[-1]' | sed 's/"//g')"

4. Deploy the cluster
   make create

Expected Result
ARO Cluster deploys

Actual Result
╷
│ Error: Invalid provider configuration
│
│ Provider "registry.terraform.io/hashicorp/azurerm" requires explicit configuration. Add a provider block to the root module and configure the provider's required arguments as described in the provider documentation.
│
╵
╷
│ Error: Missing required argument
│
│ with provider["registry.terraform.io/hashicorp/azurerm"],
│ on line 0:
│ (source code not available)
│
│ The argument "features" is required, but no definition was found.

I've successfully created ARO clusters using the files in this repo for the past few weeks. I saw these errors when I pulled the updates.

I apologize in advance if this is not the correct place to open an issue.