Multiple projects and dependencies

[yossis]

I have a .Net solution that contains multiple projects of both Managed
C++ and C#.

There are references in one Managed C++ project's classes to classes in
another Managed C++ project.
i.e. Proj2::Class2 uses Proj1::Class1

Proj2 has a reference entry for Proj1

Each projects uses its own namespace, so Proj2::Class2.cpp has a #using
namespace line referring to the namespace declared in the Proj1 classes

I cannot get this scenario to compile. I get:
"error C2512: 'Proj1::Class1' : no appropriate default constructor
available"

If I add #include "Class1.h" to Class2.cpp, then I alse get this:
"error C2011: 'ManagedCppProj1::Class1' : 'class' type
redefinition"

I have tried the same scenario in a dummy solution with 2 simple
Managed C++ projects and get the same results

Any ideas??