Question

我一直在尝试用CLion正确设置OpenCV的尝试，但收效甚微，因此请提出要求。

这是我的CMakeList的样子：

cmake_minimum_required(VERSION 3.12)
project(ocv_test)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

find_package(OpenCV REQUIRED)

set(SOURCE_FILES main.cpp)
add_executable(ocv_test ${SOURCE_FILES})

include_directories(${OpenCV_INCLUDE_DIRS})
target_link_libraries(ocv_test ${OpenCV_LIBS})

这是我得到的错误：

"C:\Program Files\JetBrains\CLion 2018.2.2\bin\cmake\win\bin\cmake.exe" -DCMAKE_BUILD_TYPE=Debug -G "CodeBlocks - MinGW Makefiles" C:\Users\Owner\CLionProjects\ocv-test
Could not find OpenCV_CORE_INCLUDE_DIR
Could not find OpenCV_HIGHGUI_INCLUDE_DIR
Include dir: OFF
CMake Error at C:/Program Files/JetBrains/CLion 2018.2.2/bin/cmake/win/share/cmake-3.12/Modules/FindOpenCV.cmake:220 (MESSAGE):
  OpenCV required but some headers or libs not found.  Please specify it's
  location with OpenCV_ROOT_DIR env.  variable.
Call Stack (most recent call first):
  CMakeLists.txt:6 (find_package)


-- Configuring incomplete, errors occurred!
See also "C:/Users/Owner/CLionProjects/ocv-test/cmake-build-debug/CMakeFiles/CMakeOutput.log".

我主要是从另一个SO答案关注these steps，但步骤如下：

已安装MinGW-64
- 体系结构：x86_64，线程：posix，异常：sjlj
已安装CMake 3.12.2 x64 msi
在系统变量中，设置/创建以下内容：
- _CMAKE_HOME（C：\ Program Files（x86）\ CMake）
- _MINGW_HOME（C：\ mingw \ mingw64）
然后，将以下内容添加到Path变量中：
- ％_ CMAKE_HOME％\ bin
- ％_ MINGW_HOME％\ bin
下载OpenCV 3.4.3，然后解压缩到：
- C：\ opencv \ opencv-3.4.3
使用CMake，配置w / MinGW Makefile并指定本机编译器：
- C：C：/mingw/mingw64/bin/x86_64-w64-mingw32-gcc.exe
- C ++：C：/ mingw / mingw64 / bin / x86_64-w64-mingw32-g ++。exe
然后，生成（不包含测试，文档，Python，WITH_IPP，WITH_MSMF）以：
- C：_dev_sw \ opencv \ opencv-3.4.3 \ build_mingw
运行mingw32-make，然后在C：_dev_sw \ opencv \ opencv-3.4.3 \ build_mingw中安装mingw32-make
在系统变量中，设置/创建以下内容：
- _OPENCV_HOME（C：\ opencv \ opencv-3.4.3 \ build_mingw \ install \ x64 \ mingw）
然后，将以下内容添加到Path变量中：
- ％_ OPENCV_HOME％\ bin
将FindOpenCV.cmake添加到：
- C：\ Program Files \ JetBrains \ CLion 2018.2.2 \ bin \ cmake \ win \ share \ cmake-3.12 \ Modules
在CLion中创建新的C ++可执行项目（ocv测试）
更新MakeLists.txt文件（请参见上文）
重新加载MakeLists.txt并获取上面显示的错误

我尝试如下更新CMakeList，但仍然存在相同的错误：

cmake_minimum_required(VERSION 3.12)
project(ocv_test)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

# Where to find CMake modules and OpenCV
set(OpenCV_DIR "C:\\opencv\\opencv-3.4.3\\build_mingw\\install")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")

find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})

add_executable(ocv_test main.cpp)

# add libs you need
set(OpenCV_LIBS opencv_core opencv_imgproc opencv_highgui opencv_imgcodecs)

# linking
target_link_libraries(ocv_test ${OpenCV_LIBS})

与this答案不同，我在CMake版本中看不到OpenCV_DIR名称。另外，我尝试将_OPENCV_HOME更新为OpenCV_ROOT_DIR（如错误所述），但这也不起作用。

似乎有什么异常吗？

===

编辑1：

FindOpenCV是问题所在（因此跳过步骤11）。在CMakeLists中设置OPENCV_DIR var可以修复错误，并且可以成功构建（感谢Tsyvarev！）。

我不确定如果在其他PC和/或OS上运行项目，则在CMakeLists中设置OPENCV_DIR是否会成为问题，因此我在CMake GUI中添加了OPENCV_DIR条目（指向/ install目录），重复步骤6- 8，创建了新的但类似的CLion项目，并收到以下错误：

CMake Error at CMakeLists.txt:10 (find_package):
  By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "OpenCV", but
  CMake did not find one.

  Could not find a package configuration file provided by "OpenCV" with any
  of the following names:

    OpenCVConfig.cmake
    opencv-config.cmake

  Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set
  "OpenCV_DIR" to a directory containing one of the above files.  If "OpenCV"
  provides a separate development package or SDK, be sure it has been
  installed.

同样，如果我设置OPENCV_DIR变量，此问题将得到解决。但是，由于已经在GUI中进行了配置，如何避免这种情况？

Windows 10上的CLion，MinGW-64和CMake“需要OpenCV，但未找到某些标头或库”

0 个答案: