Ubuntu ROS下遇到的问题记录

问题一：

在ROS工作空间执行catkin_make命令的时候遇到如下问题：

The specified base path "/home/hl/catkin_AGV" contains a CMakeLists.txt but "catkin_make" must be invoked in the root of workspace

解决方法记录如下：

unlink /home/hl/catkin_AGV/CMakeLists.txt

参考：https://answers.ros.org/question/252980/catkin_make-fail-must-be-invoked-in-the-root-of-workspace/

问题二：

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.

解决方法：

在find_package（OpenCV） 之前加上OpenCVConfig.cmake或者opencv-config.cmake所在文件的路径：

set(OpenCV_DIR /usr/share/OpenCV/)