vRA 6.2.2 IaaS SQL Database error on installation

Hi,

I am installing a vRA 6.2.2 POC setup:

I have vRealize Identity Appliance 2.2.2 and vRealize Automation Appliance 6.2.2 installed ok.

I have built a Windows Server 2012 R2 server with MS SQL Server 2012 Express.

I have used Brian Graf's Pre-Req Powershell script and all the Pre-Reqs in the installer have passed.

The next step when it goes to create the database fails. The MS SQL database server is running on the same VM as the IaaS Component server, is this allowed?

"Cannot connect to Microsoft SQL Server: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - No connection could be made because the target machine actively refused it.)

Regards

Rob