[libvirt] Create a copy of a Domain

Hello All, I am trying to create a Domain/VM copy program. In this program, a completely new domain should be created from a source domain. What I tried so far is this: 1. Get the XML Desc of the source Domain using "virDomainGetXMLDesc". 2. Get the Hypervisor Object for the source Domain using "virDomainGetConnect". 3. Create a new Domain using the "virDomainCreateXML" method. After doing this, I get the following error: libvirt.libvirtError: POST operation failed: xend_post: error from xen daemon: (xend.err "Error creating domain: VM name already in use by domain 4") First of all, Is this the correct way to create a new Domain as a copy of the original?? If not, please tell me how should I go about this?? Thanks and Regards Sagar Barve