ORD - "A Civil 3D model must exist in order to create Civil Cross Section boundaries"

I created a new 2d file to create cross-sections in ORD. When attempting to "add boundary", I get the following error message

A Civil 3D model must exist in order to create Civil Cross Section boundaries

What prep work do I need to do prior to cutting sections. Is there a seed file for cross-sections?

Thanks,

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