編譯問題：
CMake Error at modules/perception/lidar/CMakeLists.txt:14 (find_package):
? By not providing "FindEigen.cmake" in CMAKE_MODULE_PATH this project has
? asked CMake to find a package configuration file provided by "Eigen", but
? CMake did not find one.
? Could not find a package configuration file provided by "Eigen" with any of
? the following names:
??? EigenConfig.cmake
??? eigen-config.cmake
? Add the installation prefix of "Eigen" to CMAKE_PREFIX_PATH or set
? "Eigen_DIR" to a directory containing one of the above files.? If "Eigen"
? provides a separate development package or SDK, be sure it has been
? installed.
CMakeLists.txt
文章來源：http://www.zghlxwxcb.cn/news/detail-429701.html
由于此時(shí)是通過sudo apt install libeigen3-dev安裝的，在/usr/lib/cmake下面會(huì)有eigen的cmake文件，需要將原find_package(Eigen REQUIRED)改為find_package(Eigen3 REQUIRED)，這樣就不會(huì)報(bào)找不到eigen了。文章來源地址http://www.zghlxwxcb.cn/news/detail-429701.html
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