Error template Create a specialized virtual machine in an existing virtual network - 201-specialized-vm-in-existing-vnet/

The template https://github.com/Azure/azure-quickstart-templates/tree/master/201-vm-specialized-vhd-existing-vnet

Generates the following error:

{
"error": {
"code": "InvalidResourceReference",
"message": "Resource /subscriptions/13df0939-b409-4c02-bf8f-6904de1a6d15/resourceGroups/GROUP-PRUEBAS/providers/Microsoft.Network/virtualNetworks/PRUEBASANHAZURE referenced by resource /subscriptions/13df0939-b409-4c02-bf8f-6904de1a6d15/resourceGroups/Group-Pruebas/providers/Microsoft.Network/networkInterfaces/SVSQLSP01C-PR was not found. Please make sure that the referenced resource exists, and that both resources are in the same region.",
"details": [
{
"code": "NotFound",
"message": "Resource /subscriptions/13df0939-b409-4c02-bf8f-6904de1a6d15/resourceGroups/GROUP-PRUEBAS/providers/Microsoft.Network/virtualNetworks/PRUEBASANHAZURE not found."

Probe manually creating the network interface but the same thing happens

Start by reviewing the 201-vm-specialized-vhd-existing-vnet template and the reported InvalidResourceReference error, then trace how the virtual network and network interface references are constructed. Reproduce the deployment or manual network-interface creation with the reported parameters. Done means the template can create the specialized VM and its network interface without the missing virtual-network error.

Written by the indexing model from the issue text.