101-vm-user-image-data-disks template deployment is not valid

After trying to deploy 101-vm-user-image-data-disks I get following error message:

> The template deployment 'Microsoft.Template' is not valid according to the validation procedure.

I am deploying in to existing resource group where my OS and Data disk images reside in single storage account. I input urls to os and data disks in this storage account.

Can anyone please verify if facing same issue?

Start by reproducing the 101-vm-user-image-data-disks deployment in an existing resource group, using OS and data disk image URLs from one storage account. Check the Azure validation error and compare the template's expected image and storage-account inputs with the supplied values. Done means the template deployment validates successfully with that arrangement.

Written by the indexing model from the issue text.