JVM的小知识总结

问题出现在我使用catkin_make的时候

CMake Error at /home/hiuching-g/catkin_ws/devel/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by "gazebo_plugins"
  with any of the following names:

    gazebo_pluginsConfig.cmake
    gazebo_plugins-config.cmake

而且我能够在/opt/ros/foxy/share/gazebo_plugins/cmake路径找到gazebo_plugins_Config.cmake文件，有一个很坑的就是报错要找的是gazebo_pluginsConfig.cmake，而不是中间有一杠，所以我把那一杠删掉了。
原来的Cmakelist.txt是

find_package(catkin REQUIRED COMPONENTS
  gazebo_plugins
  gazebo_ros
  roscpp
  rospy
  std_msgs
)

然后在catkin_ws的cmakelist.txt里边修改，让它直接找path而不是按照预设的找

find_package(catkin REQUIRED COMPONENTS
  PATHS /opt/ros/foxy/share/gazebo_plugins/cmake
  PATHS /opt/ros/foxy/share/gazebo_ros/cmake
  roscpp
  rospy
  std_msgs
)

再次运行catkin_make就成功了。