编译时遇到 Add the installation prefix of “xxx“ to CMAKE_PREFIX_PATH or set“xxx_DIR“ to a directory_add the installation prefix of "livox_ros_driver"

例如：

使用Sophus编译时遇到 Add the installation prefix of “Sophus” to CMAKE_PREFIX_PATH or set"Sophus_DIR" to a directory

CMake Error at CMakeLists.txt:5 (find_package):
  By not providing "FindSophus.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Sophus", but
  CMake did not find one.
 
  Could not find a package configuration file provided by "Sophus" with any
  of the following names:
 
    SophusConfig.cmake
    sophus-config.cmake
 
  Add the installation prefix of "Sophus" to CMAKE_PREFIX_PATH or set
  "Sophus_DIR" to a directory containing one of the above files.  If "Sophus"
  provides a separate development package or SDK, be sure it has been
  installed.
 
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解决方法：在cmakelist 文件中添加

set(Sophus_DIR "/home/xxx/Sophus/build")      //自己的路径

find_package( Sophus REQUIRED )

include_directories( ${Sophus_INCLUDE_DIRS} )

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