Error: Invalid expression '${vami.ip0.Ubuntu1}' for property 'vm.ip'

Hi,

I have created a  vApp using VMWare Studio (2.5). The vApp containes just one VM. I am using vApprun adn ovftool to launch the VM (within the vApp) in Workstation 8. I am able to successfully pull the vApp into vApprun using the ovftool. Howeveer when I try to start the app (i.e. launch it in workstation) from vApprun (vapprun start -gui [vAppName] command) it throws the above error (Error: Invalid expression '${vami.ip0.Ubuntu1}' for property 'vm.ip').

The expression ${vami.ip0.Ubuntu1} was created by Studio and I did not see any place where I can specify the name for the expression.

How can I resolve this issue to be able to launch he vApp from within the Workstataion.

Thanks.