从另一个Windows Phone运行时组件项目中引用C ++类

我有两个包含C ++类的Windows Phone运行时组件项目（Windows Phone Silverlight 8.1）：

• FooRuntimeComponent：
  • FooClass.cpp
  • FooClass.h
• BarRuntimeComponent：
  • BarClass.cpp
  • BarClass.h

我想在Bar类中创建的Foo对象上调用方法。

Foo.h：

#pragma once

namespace FooRuntimeComponent
{
    public ref class FooClass sealed
    {
    public:
        FooClass();
    };
}

FooClass.cpp：

#include "FooClass.h"

using namespace FooRuntimeComponent;
using namespace Platform;

FooClass::FooClass()
{
}

BarClass.cpp：

#include "BarClass.h"
#include "FooClass.h"

using namespace BarRuntimeComponent;
using namespace Platform;
using namespace FooRuntimeComponent;

BarClass::BarClass()
{       
    FooClass^ foo = ref new FooClass();
}

如果我尝试通过将FooRuntimeComponent.lib指定为附加依赖项并提供指向.lib的路径来“传统地”将Foo链接到Bar，那么我将收到Bar的以下编译错误：

error LNK2019: unresolved external symbol "public: __cdecl FooRuntimeComponent::FooClass::FooClass(void)" (??0FooClass@FooRuntimeComponent@@Q$AAA@XZ) referenced in function "public: __cdecl BarRuntimeComponent::BarClass::BarClass(void)" (??0BarClass@BarRuntimeComponent@@Q$AAA@XZ)

在FooRuntimeComponent.lib上运行dumpbin.exe会产生：

Microsoft (R) COFF/PE Dumper Version 12.00.31101.0
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file FooRuntimeComponent.lib

File Type: LIBRARY

  Summary

          FF .debug$S
          14 .idata$2
          14 .idata$3
           4 .idata$4
           4 .idata$5
          20 .idata$6

我确实注意到运行时组件会生成一个.winmd文件。我尝试添加此.winmd作为对Bar项目的引用，但是随后出现以下错误：

error C2011: 'FooRuntimeComponent::FooClass' : 'class' type redefinition
error C2027: use of undefined type 'FooRuntimeComponent::FooClass'
error C2027: use of undefined type 'FooRuntimeComponent::FooClass'
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
error C2680: 'FooRuntimeComponent::FooClass ^' : invalid target type for dynamic_cast
error C2440: 'return' : cannot convert from 'FooRuntimeComponent::FooClass ^' to 'int'

我想念什么吗？