CMake找不到OpenCVConfig.cmake

Question

I'm trying to make OpenCV work with CMake in Clion on Windows 10 (64bit). I've already set OPENCV_DIR to the OpenCV build folder that contains OpenCVConfig.cmake , but cmake keeps nagging it cannot find the file.

Could not find a package configuration file provided by "OpenCV" with any of the following names:
  OpenCVConfig.cmake   opencv-config.cmake

Here's my CMakeLists:

cmake_minimum_required(VERSION 3.6)
project(MyProject)

set(OpenCV_DIR "D:/opencv/build/")

find_package(OpenCV REQUIRED core imgproc)

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

include_directories(${OpenCV_INCLUDE_DIRS})
add_executable(MyProject main.cpp)
target_link_libraries(MyProject ${OpenCV_LIBS})

And here's the content of the D:/opencv/build/ folder:

What can be the problem here? Thanks in advance!

Answer 1

I've found the problem, totally unexpected for a CMake newcomer like me.

It turns out I installed CMake as part of Cygwin, and thus filesystem paths take the form of /cygdrive/d/opencv/build/ instead. That works without a problem.

So if you're on Windows, please note the different file path style in case CMake is provided by Cygwin.