c++ - 从 Visual Studio 2013 转换到 Visual Studio 2015 的问题

Question

我有一个庞大的 C++ 程序，到目前为止，我一直在使用 VS 2013 Express 进行处理。试用版结束，所以我决定转向 VS 2015 Professional。当我尝试编译和调试在 VS 2013 上完美运行的完全相同的代码时，我遇到了这些错误。我怎样才能使这项工作？

1main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall sf::RectangleShape::RectangleShape(class sf::RectangleShape &&)" (__imp_??0RectangleShape@sf@@QAE@$$QAV01@@Z) referenced in function "public: __thiscall entity::entity(class entity &&)" (??0entity@@QAE@$$QAV0@@Z)


1>main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class sf::RectangleShape & __thiscall sf::RectangleShape::operator=(class sf::RectangleShape &&)" (__imp_??4RectangleShape@sf@@QAEAAV01@$$QAV01@@Z) referenced in function "public: class entity & __thiscall entity::operator=(class entity &&)" (??4entity@@QAEAAV0@$$QAV0@@Z)


1>main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall sf::Sprite::Sprite(class sf::Sprite &&)" (__imp_??0Sprite@sf@@QAE@$$QAV01@@Z) referenced in function "public: __thiscall entity::entity(class entity &&)" (??0entity@@QAE@$$QAV0@@Z)


1>main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class sf::Sprite & __thiscall sf::Sprite::operator=(class sf::Sprite &&)" (__imp_??4Sprite@sf@@QAEAAV01@$$QAV01@@Z) referenced in function "public: class entity & __thiscall entity::operator=(class entity &&)" (??4entity@@QAEAAV0@$$QAV0@@Z)


1>main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall sf::Text::Text(class sf::Text &&)" (__imp_??0Text@sf@@QAE@$$QAV01@@Z) referenced in function "public: __thiscall entity::entity(class entity &&)" (??0entity@@QAE@$$QAV0@@Z)


1>main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class sf::Text & __thiscall sf::Text::operator=(class sf::Text &&)" (__imp_??4Text@sf@@QAEAAV01@$$QAV01@@Z) referenced in function "public: class entity & __thiscall entity::operator=(class entity &&)" (??4entity@@QAEAAV0@$$QAV0@@Z)


1>C:\SFML-2.3.2\SFML\Debug\SFML.exe : fatal error LNK1120: 6 unresolved externals

Answer 1

SFML 似乎注释了一些类，以便将它们的所有成员都放入 DLL 中。但是，VS2015 现在生成移动构造函数和移动赋值运算符，而 VS2013 没有，而且库似乎没有正确处理这个问题。所有缺少的符号都是这些新函数。

具体来说，编译器似乎没有在客户端程序中生成实现，因为它希望它们存在于 DLL 中，但它们不存在于 DLL 中。您是否重新编译了 DLL，或者您使用的是用于 VS2013 的同一个 DLL？重复使用旧的可能会导致此错误。