Add the installation prefix of "rslidar_msgs" to CMAKE_PREFIX_PATH

edit

I'm a beginner in ROS, and I'm using the version of ROS for windows. ros package for robosense lidar So I'm in windows. This is done through a CMD window. But I've met 2 problem:

1. how to install libpcap-dev in ROS for windows

2. when compiling, I encounter the following problem, I put the error trace below, how to fix it

   CMake Error at C:/opt/ros/melodic/x64/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
     Could not find a package configuration file provided by "rslidar_msgs" with
     any of the following names:
   
       rslidar_msgsConfig.cmake
       rslidar_msgs-config.cmake
   
     Add the installation prefix of "rslidar_msgs" to CMAKE_PREFIX_PATH or set
     "rslidar_msgs_DIR" to a directory containing one of the above files.  If
     "rslidar_msgs" provides a separate development package or SDK, be sure it
     has been installed.
   Call Stack (most recent call first):
     CMakeLists.txt:24 (find_package)