cartographer_node 编译没问题，但是运行直接挂掉的bug

 [cartographer_node-3] process has died [pid 20529, exit code 127, cmd /home/pp/vm_ws/carto_ws/install_isolated/lib/cartographer_ros/cartographer_node -configuration_directory /home/pp/vm_ws/carto_ws/install_isolated/share/cartographer_ros/configuration_files -configuration_basename demo_hokuyo.lua scan:=/scan odom:=/odom __name:=cartographer_node __log:=/home/pp/.ros/log/7e019d86-4a06-11ec-a605-c85b7683da3c/cartographer_node-3.log].
log file: /home/pp/.ros/log/7e019d86-4a06-11ec-a605-c85b7683da3c/cartographer_node-3*.log

catrtographer 编译没有问题，运行的时候，节点直接死了。

直接运行节点

rosrun cartographer_ros cartographer_node

报错 是符号不对。

通过上网检索，找到一些线索，

可能是某些链接库链接到错误的地方了

果然 ldd cartographer_node | grep glog 

libglog.so.0 => /home/XX/my_lib/glog/build/libglog.so.0

显示在我自己的另外一个glog/build 下了

删掉build，重新编译cartographer，重新查看链接关系：

ldd cartographer_node | grep glog 

    libglog.so.0 => /usr/local/lib/libglog.so.0 (0x00007f7d36e09000)
结果就对了。

参考

artographer编译方法及编译出错（glog库链接错误）解决方法