COULD NOT FIND A PACKAGE,CONFIGURATION FILE PROVIDED BY “G2O” ,G2OCONFIG.CMAKE,G2O-CONFIG.CMAKE
在学习slam十四讲的时候，成功安装编译了g2o，但是在运行g2o_curve_fitting代码时出现错误，提示如下：
CMake Error at CMakeLists.txt:8 (find_package):
By not providing “FindG2O.cmake” in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by “G2O”, but CMake did not find one.
Could not find a package configuration file provided by “G2O” with any of
the following names:
G2OConfig.cmake
g2o-config.cmake
Add the installation prefix of “G2O” to CMAKE_PREFIX_PATH or set “G2O_DIR” to a directory containing one of the above files. If “G2O” provides a separate development package or SDK, be sure it has been installed.
这时需要在cmakelist文件中添加几行代码，添加代码如下：
list(APPEND CMAKE_MODULE_PATH /XXX/g2o/cmake_modules)
set(G2O_ROOT /XXX/g2o)
find_package( G2O REQUIRED )
include_directories(
${G2O_INCLUDE_DIRS}
“/usr/include/eigen3”
)
/XXX/g2o 是你的g2o安装目录，如果不知道自己的安装录取，可以在lunix主文件夹中搜索g2o，找到后，右键属性，即可看到父文件夹，那就是安装目录了。