CMake -特征3_DIR-NOTFOUND
CMake -特征3_DIR-NOTFOUND
提问于 2020-02-06 21:39:07
我正试图在Windows10上使用CMake构建一个项目。但我连续几个小时都遇到了这个错误：
错误：
CMake Error at of_dis/CMakeLists.txt:8 (FIND_PACKAGE):
By not providing "FindEigen3.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Eigen3", but
CMake did not find one.
Could not find a package configuration file provided by "Eigen3" with any
of the following names:
Eigen3Config.cmake
eigen3-config.cmake
Add the installation prefix of "Eigen3" to CMAKE_PREFIX_PATH or set
"Eigen3_DIR" to a directory containing one of the above files. If "Eigen3"
provides a separate development package or SDK, be sure it has been
installed.我下载了特征，提取了它，并添加了一个名为EIGEN3_INCLUDE_DIR的新的环境变量C:\eigen-3.3.7\cmake值。此外，我在项目的CMake文件中添加了一行，现在如下所示：
CMakeLists.txt：
cmake_minimum_required(VERSION 2.8)
project(IMOT_OpticalFlow_Edges)
find_package(OpenCV REQUIRED)
add_subdirectory(of_dis)
include_directories(./of_dis ${OpenCV_INCLUDE_DIRS})
INCLUDE_DIRECTORIES ( "$ENV{EIGEN3_INCLUDE_DIR}" )
set(CMAKE_CXX_STANDARD 11)
#set(OpenCV_DIR "C:/opencv/opencv3.4.1/opencv-3.4.1/build/install")
set(OpenCV_DIR "C:/opencv/opencv3.4.1/opencv-3.4.1/build/install/x64/vc14/lib")
set(SOURCE_FILES src/main.cpp src/support/Place.cpp src/support/Line.cpp src/support/Argument.cpp
src/support/FileOperations.cpp src/frame_processing/FrameProcessor.cpp src/flow_processing/FlowProcessor.cpp
src/edge_processing/EdgeProcessor.cpp src/detection/Detector.cpp)
add_executable(IMOT_OpticalFlow_Edges ${SOURCE_FILES})
target_link_libraries(IMOT_OpticalFlow_Edges ${OpenCV_LIBS})CMake图形用户界面：
我还在当前项目中复制了FindEigen3.cmake文件。但我仍然一次又一次地犯同样的错误。有办法解决这个问题吗？
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-02-07 12:40:05
为了完整地总结这些评论意见：
CMake的find_package()命令有两种操作模式：模块和Config模式。此错误实质上说模块模式失败，然后Config模式无法找到Eigen3包：
By not providing "FindEigen3.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Eigen3", but
CMake did not find one.
Could not find a package configuration file provided by "Eigen3" with any
of the following names:
Eigen3Config.cmake
eigen3-config.cmake
Add the installation prefix of "Eigen3" to CMAKE_PREFIX_PATH or set
"Eigen3_DIR" to a directory containing one of the above files. If "Eigen3"
provides a separate development package or SDK, be sure it has been
installed.通常，当安装了某某软件包(例如Eigen3 )时，该包应该配置XXXConfig.cmake文件。这样，外部项目就可以通过在find_package() Config模式下调用来查找和使用package。
因为您的Eigen3包没有安装，所以没有配置Eigen3Config.cmake文件。因此，模块模式搜索应该适合您，因为只有FindEigen3.cmake文件存在于Eigen3目录中。对于模块模式，如错误所示，必须将FindEigen3.cmake文件的路径添加到CMAKE_MODULE_PATH中。在find_package(Eigen3 ...)调用之前添加这一行允许CMake Module模式成功：
list(APPEND CMAKE_MODULE_PATH "C:/eigen-3.3.7/cmake")页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/60103934
复制相关文章
相似问题
腾讯云开发者
