title: Solution.metaproj error MSB3202: The project file 'xxx' was not found
body: <p>I have a TFS Project with two main folders:</p>
  
  <p>Project</p>
  
  <p>--Folder1   </p>
  
  <p>----LibraryA   </p>
  
  <p>--Folder2</p>
  
  <p>----AppA referencing LibraryA</p>
  
  <p>When I build AppA solution, TFS fails to build, providing the following Error:</p>
  
  <p>C:\Builds\1\Project\AppA\Sources\Folder2..\Folder1\LibraryA\LibraryA.csproj</p>
  
  <p>I think TFS is doing something like $(CurrentBuildDir)$(ProjectReferenceSourceLocation), which just sticks the ..\Folder1\LibraryA part on there.</p>
  
  <p>I know shared assemblies should probably be build in their own solution and then references made to the build copies but this is how it is.</p>
  
  <p>Any ideas how to get TFS to know how to navigate out of the solution folder to find referenced projects?</p>
  
  <p>TIA</p>