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Could not find a package configuration file provided by “OpenCV“ with any of the following na_"could not find a package configuration file provi
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安装realsense d455时报错，在google上搜到解决办法，分享出来，原链接在这这里
问题描述：
CMake Error at /opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
Could not find a package configuration file provided by “OpenCV” with any
of the following names:
OpenCVConfig.cmake
opencv-config.cmake
- 1
- 2
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.
Call Stack (most recent call first):
realsense-ros/realsense2_camera/CMakeLists.txt:14 (find_package)
解决办法：
在 realsense-ros/realsense2_camera/CMakeLists.txt里面的find_package前面加上下面这句：
set(OpenCV_DIR /usr/share/OpenCV/)
后续问题！！！
加了这两句后执行操作 roslaunch realsense2_camera rs_camera.launch 时又出现了下面这个报错
/opt/ros/melodic/lib/nodelet/nodelet: symbol lookup error: /home/tang/catkin_ws/devel/lib//librealsense2_camera.so: undefined symbol: _ZN2cv3MatC1Ev
[camera/realsense2_camera_manager-2] process has died [pid 16390, exit code 127, cmd /opt/ros/melodic/lib/nodelet/nodelet manager __name:=realsense2_camera_manager __log:=/home/tang/.ros/log/eeedd618-d9f7-11ed-855b-dcfb484ed9d2/camera-realsense2_camera_manager-2.log].
log file: /home/tang/.ros/log/eeedd618-d9f7-11ed-855b-dcfb484ed9d2/camera-realsense2_camera_manager-2*.log
解决方法。把刚刚加的那一句删除就就解决问题了，原因不知道为啥
