Error: creating Linux Virtual Machine: (Name "ace-iac-spoke2-app" / Resource Group "rg-av-ace-iac-spoke2-125666"): compute.VirtualMachinesClient#CreateOrUpdate: Failure sending request: StatusCode=409 -- Original Error: Code="SkuNotAvailable" Message="The requested size for resource '/subscriptions/0ded6c5f-4893-430e-87ee-c3382cea2ce6/resourceGroups/rg-av-ace-iac-spoke2-125666/providers/Microsoft.Compute/virtualMachines/ace-iac-spoke2-app' is currently not available in location 'canadacentral' zones '' for subscription '0ded6c5f-4893-430e-87ee-c3382cea2ce6'. Please try another size or deploy to a different location or zones. See https://aka.ms/azureskunotavailable for details."
with azurerm_linux_virtual_machine.azure_spoke2_vm
on azure.tf line 81, in resource "azurerm_linux_virtual_machine" "azure_spoke2_vm":
resource "azurerm_linux_virtual_machine" "azure_spoke2_vm" {

Error: failed to create Aviatrix Spoke Gateway: rest API create_spoke_gw Post failed: Error: [AVXERR-TRANSIT-0067] Azure Error: InvalidTemplateDeployment Message: The template deployment failed with error: 'The resource with id: '/subscriptions/0ded6c5f-4893-430e-87ee-c3382cea2ce6/resourceGroups/rg-av-ace-iac-spoke2-125666/providers/Microsoft.Compute/virtualMachines/av-gw-ace-iac-spoke2' failed validation with message: 'The requested size for resource '/subscriptions/0ded6c5f-4893-430e-87ee-c3382cea2ce6/resourceGroups/rg-av-ace-iac-spoke2-125666/providers/Microsoft.Compute/virtualMachines/av-gw-ace-iac-spoke2' is currently not available in location 'Canada Central' zones '1' for subscription '0ded6c5f-4893-430e-87ee-c3382cea2ce6'. Please try another size or deploy to a different location or zones. See https://aka.ms/azureskunotavailable for details.'.'. Please go to Azure cloud portal and check Activity log for resource group rg-av-ace-iac-spoke2-125666 to get detailed reason.
with module.azure_spoke_2.aviatrix_spoke_gateway.default
on .terraform/modules/azure_spoke_2/main.tf line 35, in resource "aviatrix_spoke_gateway" "default":
resource "aviatrix_spoke_gateway" "default" {

i am unable to identify the right size

The following components were failing until Microsoft.Network and Microsoft.Compute providers were registered:

Azure CLI command to register the provider:

az provider register --namespace Microsoft.Network

az provider register --namespace Microsoft.Compute

Command to confirm that registration was successful:

az provider show -n Microsoft.Network --output table

az provider show -n Microsoft.Compute --output table