Question

我从MSVS 2017的NuGet下载了OpenCV，并运行了在此站点上找到的代码：

#include "stdafx.h"
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>

using namespace std;
using namespace cv;

int main()
{
    Mat image = imread("C:\\Users\\Chubak\\Pictures\\index.jpg");
    if (image.empty())
        return -1;
    imshow("TEST", image);
    waitKey();

    return 0;
}

但是当我运行代码时，出现了我无法理解的极其难以理解的错误：

1>------ Build started: Project: OpenCLTest, Configuration: Debug Win32 ------
1>OpenCLTest.cpp
1>OpenCLTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::fastFree(void *)" (?fastFree@cv@@YAXPAX@Z) referenced in function "public: __thiscall cv::Mat::~Mat(void)" (??1Mat@cv@@QAE@XZ)
1>OpenCLTest.obj : error LNK2019: unresolved external symbol "public: __thiscall cv::_InputArray::_InputArray(class cv::Mat const &)" (??0_InputArray@cv@@QAE@ABVMat@1@@Z) referenced in function _main
1>OpenCLTest.obj : error LNK2019: unresolved external symbol "public: void __thiscall cv::Mat::deallocate(void)" (?deallocate@Mat@cv@@QAEXXZ) referenced in function "public: void __thiscall cv::Mat::release(void)" (?release@Mat@cv@@QAEXXZ)
1>OpenCLTest.obj : error LNK2019: unresolved external symbol "int __cdecl cv::_interlockedExchangeAdd(int *,int)" (?_interlockedExchangeAdd@cv@@YAHPAHH@Z) referenced in function "public: void __thiscall cv::Mat::release(void)" (?release@Mat@cv@@QAEXXZ)
1>OpenCLTest.obj : error LNK2019: unresolved external symbol "int __cdecl cv::waitKey(int)" (?waitKey@cv@@YAHH@Z) referenced in function _main
1>OpenCLTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::imshow(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class cv::_InputArray const &)" (?imshow@cv@@YAXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@ABV_InputArray@1@@Z) referenced in function _main
1>OpenCLTest.obj : error LNK2019: unresolved external symbol "class cv::Mat __cdecl cv::imread(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,int)" (?imread@cv@@YA?AVMat@1@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@H@Z) referenced in function _main
1>c:\users\chubak\documents\visual studio 2017\Projects\OpenCLTest\Debug\OpenCLTest.exe : fatal error LNK1120: 7 unresolved externals
1>Done building project "OpenCLTest.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

我了解无法解决的外部错误与缺少obj文件有关，但是它们不是与NuGet软件包一起提供的吗？

我还发现了this问题，但答案中给出的所有链接都不再起作用，因此这可能是重复的，也可能不是重复的。

从NuGet下载的OpenCV提供了未解决的外部LNK2019

0 个答案: