linking problem revisited

[Gary Hughes]

Hi all, sometime I posted a problem in here where I was
getting the following error from the linker in VS C++ 2003.

Linking...
GCClass.obj : error LNK2022: metadata operation failed
(80131188) : Inconsistent field declarations in duplicated
types (types: GCClass; fields: m_blah): (0x04000001).
LINK : fatal error LNK1215: metadata operation failed
(80131130) :

At the time I was unable to produce a simple test case and
due to time constraints I had to leave the problem. I had
another go at it today and was able to produce a simple
test case. The code follows:

namespace itga
{

template<typename Type>
class dog
{
public:
class blah {};
};

}

public __gc class GCClass
{
itga::dog<int>::blah* m_blah;
};

If I attempt to instantiate GCClass as follows I get the
error above.

GCClass* g = new GCClass;

There are two things I can do to get rid of the error:

1. put the dog class outside the itga namespace.
2. not make the dog class a template.

Neither of these is possible nor desirable as I'm just
trying to wrap a heap of existing C++ code in .NET
wrappers and as far as I am concerned this seems perfectly
legal to me.

Does anyone have any idea what is going on here?

thanks.

Gary.