OpenCV CLion (Cmake) 链接问题 - cmake 报告一个奇怪的错误

Question

由于保存我的 CMakeLists 和/或构建项目时出现奇怪的错误，我无法让我的 CLion 构建项目： Error:Found package configuration file: /usr/share/opencv/OpenCVConfig.cmake but it set OpenCV_FOUND to FALSE so package "OpenCV" is considered to be NOT FOUND.

源文件：

#include <stdio.h>
#include <opencv2/opencv.hpp>

using namespace cv;

int main(int argc, char** argv )
{
    Mat image;
    image = imread( "lena.jpg", 1 );
    if ( !image.data )
    {
        printf("No image data \n");
        return -1;
    }
    namedWindow("Display Image", WINDOW_AUTOSIZE );
    imshow("Display Image", image);
    waitKey(0);
    return 0;
}

我的CMakeLists.txt： cmake_minimum_required(VERSION 3.3) project(Test) find_package( OpenCV REQUIRED ) add_executable( Test main.cpp ) target_link_libraries( Test ${OpenCV_LIBS} )

$ pkg-config --cflags opencv -I/usr/include/opencv

$ pkg-config --libs opencv -L/lib64 -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_gpu -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_nonfree -lopencv_objdetect -lopencv_ocl -lopencv_photo -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videostab -ltbb -lGL -lGLU -lrt -lpthread -lm -ldl

事实是，当我从控制台手动 cmake . & make（使用所有相同的 CMakeLists 文件）我的项目时，它运行良好，没有错误。

OpenCV 版本：2.4.11-1（arch linux）CLion：最新。

OpenCVConfig.cmake 与 git 版本的区别：https://www.diffchecker。com/vtmmiu1w

手动构建输出：

[dobegor@dobegor-pc Test]$ cmake .
-- The C compiler identification is GNU 5.2.0
-- The CXX compiler identification is GNU 5.2.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/dobegor/ClionProjects/Test
[dobegor@dobegor-pc Test]$ make 
Scanning dependencies of target Test
[ 50%] Building CXX object CMakeFiles/Test.dir/main.cpp.o
[100%] Linking CXX executable Test
[100%] Built target Test

Answer 1

我不知道到底发生了什么，但我在 OpenCVConfig.cmake 中添加了一行手动将 OpenCV_FOUND 设置为 1 并且一切正常：

set(OpenCV_FOUND 1)