最近在学习ROS，想添加一个外部的功能包：http://wiki.ros.org/ipa_room_segmentation ，下载后放到我的工程空间/src，编译不通过，显示错误：
Could not find a package configuration file provided by "libdlib" with any of the following names:
libdlibConfig.cmake
libdlib-config.cmake
Add the installation prefix of "libdlib" to CMAKE_PREFIX_PATH or set
"libdlib_DIR" to a directory containing one of the above files. If
"libdlib" provides a separate development package or SDK, be sure it has
been installed.
然后我根据这个指导(https://www.learnopencv.com/install-dlib-on-ubuntu/) 安装了dlib， 再次编译结果还是一样的错误。
我是不是应该要在工作空间/src/cmakelist.txt里面添加一些语句来使得dlib与之关联？？
