Problem Building and Importing VS Project with MSBuild.

I was recently given the white paper "Change Manangement and TFS integration for multiple-developer projects". It has some instructions on Building and Importing Ax VS Projects using MSBuild.

The step in the white paper say to call:
msbuild ImportVSProjects.proj /p:Configuration=Release /p:axLayer=vap /p:axAolCode=vap /p:ModelName=Test /p:ModelPublisher="Publisher Name"

After copying the example ImportVSProjects.proj and modifying it for my local env., when I call msbuild I get the following error:
ImportVSProjects.proj(10,3): error : Could not set the current model to Test.

Anyone seen this before? Suggestion as to how I can correct it?

Thanks.