LNK2022:元数据操作失败:重复类型中的字段声明不一致 [英] LNK2022: metadata operation failed : Inconsistent field declarations in duplicated types

问题描述

我在编译C ++ .NET项目时遇到问题.

I have problem with compiling my C++ .NET project.

我已阅读>"LNK2022:元数据操作失败"令我发疯-这不是我的情况，因为就我而言，我无法编译一个项目-链接时该项目失败.我尝试了该主题的所有(两个)解决方案，但对我没有帮助.

I have read "LNK2022: metadata operation failed" driving me insane -- and this is not my case, because in my case i cannot compile one single project -- it fails at link time. i tried all (two) solutions from that topic and that didn't help me.

仅当我将类更改为模板类时，此错误才开始上升.我有Vector2Di(用于int类型)类，现在需要与float类型完全相同，所以我将其重命名为Vector2D并将其更改为使用模板，现在我有了:

This errors started to rise up just when i have changed the class to be a template class. i have Vector2Di (for int type) class and now need completely the same for float type, so i renamed it to Vector2D and changed it to use template, now i have:

template <class T>
public ref class Vector2D : NativeValue<irr::core::vector2d<T>>
{
...
}

typedef Vector2D<int> Vector2Di;
typedef Vector2D<float> Vector2Df;

它开始出现链接器错误:

And it started to apear linker errors:

错误LNK2022:元数据操作失败(80131188):重复类型中的字段声明不一致(类型:NativeValue>；字段:m_NativeValue):(0x04000058).

error LNK2022: metadata operation failed (80131188) : Inconsistent field declarations in duplicated types (types: NativeValue >; fields: m_NativeValue): (0x04000058).

和

错误LNK2022:元数据操作失败(8013118B):在重复类型中实现的接口不一致(类型:NativeValue>；接口:System.IDisposable):(0x09000005).

error LNK2022: metadata operation failed (8013118B) : Inconsistent implemented interfaces in duplicated types (types: NativeValue >; interfaces: System.IDisposable): (0x09000005).

这两种类型的错误.

总之，Vector2D打算成为C ++值类型类vector2d的包装.NET类(也是模板).我必须将所有功能重定向到包装的类，所以我需要存储它的值，但因为我不能在ref类中使用非托管的valuetype变量(编译错误，因此不可行)，我在该valuetype上使用了一个指针，但应分配该指针并释放后，我设计了ref类NativeValue －它也是模板，它存储valuetype作为引用，并注意及时删除它.

In short details: Vector2D intend to be a wrapping .NET class for C++ valuetype class vector2d (which is template too). I have to redirect all the functionality to wrappered class so i need a store its value, BUT as i cannot have unmanaged valuetype variable in ref class (compile errors apears), i use a pointer on that valuetype, BUT this pointer should be allocated and deallocated somewhere, AND I designed ref class NativeValue -- it is template too, it stores the valuetype as a reference and takes care about deleting it in time.

在这里:

    template <class T>
    ref class NativeValue
    {
    public:

        ~NativeValue()
        {
            this->!NativeValue();
        }

        !NativeValue()
        {
            if (m_NativeValue != nullptr)
            {
                delete m_NativeValue;
                m_NativeValue = nullptr;
            }
        }

    internal:

        T* m_NativeValue;

    protected:

        NativeValue() {}
    };

此外，另一个奇怪的事情出现了.当我将这些类型的使用从cpp文件移动到标头时，它会编译确定-很奇怪.

In addition, another strange thing now comes up. It compiles OK when i move my usage of these types from cpp files to headers -- that odd.

我已经预编译了头文件stdafx.cpp，并且我在stdafx.h中包括了所有基本类型(例如Vector2D)；那么每个简单的文件都包含stdafx.h并使用这些类型.

i have precompiled header stdafx.cpp, and i include all basic types (like Vector2D) in stdafx.h; then every single file simple includes stdafx.h and use these types.

请，如果您发现任何可能的错误，请告诉我. 谢谢.

Please, if you see anything possibly wrong -- tell me. Thank You.

推荐答案

您应该将模板定义和声明都放在头文件中.请参阅此，其中说明了它的工作原理

You should put the template definition and declaration both inside header file. Please refer this , it explain how it works.

这篇关于LNK2022:元数据操作失败:重复类型中的字段声明不一致的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！