OpenCV3.0与Qt创建者3.2和Qt 5.4构建错误“mingw32-make：*** [Makefile]错误3”

Question

我在Windows 7机器上用Qt5.4和Qt Creator 3.2 64位编译了OpenCV 3.0。

我一直在尝试在加载图片时执行最基本的OpenCV功能。 不幸的是，它给出了以下错误：

C：\\ Qt \\ qt-5.4.0-x64-mingw492r0-sjlj \\ qt-5.4.0-x64-mingw492r0-sjlj \\ bin \\ qmake.exe -spec win32-g ++ CONFIG + = release -o Makefile .. \\ opencv_xpto \\ opencv_xpto.pro C：/ Users / Nelson Faria / Documents / Programacao / opencv_xpto / opencv_xpto.pro:14：测试表达后的额外字符。 处理项目文件时出错：.. \\ opencv_xpto \\ opencv_xpto.pro makefile：175：目标'Makefile'的配方失败mingw32-make：*** [Makefile]错误3 20:53:17：进程“C：\\ Qt \\ qt-5.4.0-x64-mingw492r0-sjlj \\ mingw64 \\ bin \\ mingw32-make.exe“退出代码2.构建/部署项目时出错opencv_xpto（kit：Qt 5.4）执行步骤”Make“时20:53： 17：经过的时间：00：01。

我正在尝试执行的代码如下：

   '#include <iostream>
    #include "opencv2/core/core.hpp"
    #include "opencv2/highgui/highgui.hpp"
    #include "opencv/cv.h"

    using namespace std;

    int main()
    {
        cout << "Hello World!" << endl;

        cv::Mat mat;
        mat = cv::imread("img.JPG");
        cv::namedWindow("hello");
        cv::imshow("hello",mat);

        cv::waitKey(0);

        return 0;
    }

最后是.pro

TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

SOURCES += main.cpp

INCLUDEPATH += C:\opencv-mingw\install\include
LIBS += -LC:\\opencv-mingw\\install\\x64\mingw\\lib
    -lopencv_core300.dll \
    -lopencv_highgui300.dll \
    -lopencv_imgproc300.dll \
    -lopencv_features2d300.dll \
    -lopencv_calib3d300.dll

include(deployment.pri)
qtcAddDeployment()'

在我出错的地方有人可以告诉我吗？

Answer 1

正确的pro文件：

TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

SOURCES += main.cpp

INCLUDEPATH += C:/opencv-mingw/install/include
LIBS += -LC:/opencv-mingw/install/x64/mingw/lib
    -lopencv_core300 \
    -lopencv_highgui300 \
    -lopencv_imgproc300 \
    -lopencv_features2d300 \
    -lopencv_calib3d300

include(deployment.pri)
qtcAddDeployment()

---

如果发生崩溃，应用程序很可能无法加载openCV dll。 有两种方法可以解决这个问题：

• 使用您的可执行文件将这些dll复制到目录（最常见的是或多或少的类似： <your roject location>\\..\\debug-windows-64x-qt5-XXX
• 添加到那些dll的路径变量位置