CMake Warning at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76 (find_package): Could not find a package configuration file provided by "pcl_conversions" with any of the following names: pcl_conversionsConfig.cmake pcl_conversions-config.cmake Add the installation prefix of "pcl_conversions" to CMAKE_PREFIX_PATH or set "pcl_conversions_DIR" to a directory containing one of the above files. If "pcl_conversions" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): bp_costmap/CMakeLists.txt:4 (find_package) -- Could not find the required component 'pcl_conversions'. The following CMake error indicates that you either need to install the package with the same name or change your environment so that it can be found. CMake Error at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:83 (find_package): Could not find a package configuration file provided by "pcl_conversions" with any of the following names: pcl_conversionsConfig.cmake pcl_conversions-config.cmake Add the installation prefix of "pcl_conversions" to CMAKE_PREFIX_PATH or set "pcl_conversions_DIR" to a directory containing one of the above files. If "pcl_conversions" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): bp_costmap/CMakeLists.txt:4 (find_package)
解决：
sudo apt-get install ros-indigo-pcl-conversions