解决CMake时的Find_Package失败问题

今天在编译组内代码时遇到了Find_package问题，具体来说就是找不到redis的库及相关头文件。

CMake Error at cmake/micros.cmake:75 (find_package):
  By not providing "Findclass_loader.cmake" in CMAKE_MODULE_PATH this project
  has asked CMake to find a package configuration file provided by
  "class_loader", but CMake did not find one.

  Could not find a package configuration file provided by "class_loader" with
  any of the following names:

    class_loaderConfig.cmake
    class_loader-config.cmake

  Add the installation prefix of "class_loader" to CMAKE_PREFIX_PATH or set
  "class_loader_DIR" to a directory containing one of the above files.  If
  "class_loader" provides a separate development package or SDK, be sure it
  has been installed.

 针对上述问题，我们查找并安装了class_loader的开发库，上述问题就解决了。也就是

ok@u20:~/code/micros_information-dev_v2/build$ sudo apt-cache search class_loader
libclass-loader-dev - development files for Robot OS cl