Referenced proxys

[stezza]

I have a scene file with about 10 vrmesh proxy trees in a park area, this scene file renders fine but when ever I reference this park scene into the larger Town scene file I get this error and the trees dont render.

// R:/Environments/City/scenes/Park.mb //
// Error: No object matches name: City_Tree_proxy_vraymesh //

[snivlem]

namespaces?

[Zdravko]

What's the original name of the proxy file? Which Maya version is that?