BUG(跑slam14-ch6-g2o时)

安装g2o依赖项：

sudo　apt-get install libqt4-dev qt4-qmake libqglviewer-dev　libsuitesparse-dev libcxsparse3.1.2 libcholmod-dev

//根据14讲书，注：最后一个依赖项需要table键来填充名称https://www.cnblogs.com/ChrisCoder/p/7222430.html#_label4

sudo　apt-get install libqt4-dev qt4-qmake libqglviewer-dev　libsuitesparse-dev libcxsparse3.1.2　libcholmod2.1.2

//(参考配置大全)我的也是2.1.2，https://blog.csdn.net/felaim/article/details/60138647

sudo　apt-get　install　cmake　libeigen3-dev　libsuitesparse-dev　libqt4-dev　qt4-qmake　libqglviewer-dev

//重新安装参考：https://blog.csdn.net/j_____j/article/details/78767653

BUG处理

　not providing "FindG2O.cmake" in CMAKE_MODULE_PATH this　project has　asked　CMake to find a package configuration file provided by "G2O",but　CMakedid not find one.

原因及解决：定义了CMAKE_MODULE_PATH但是没有相应的文件夹和文件，所以应该有新建一个包含FindG2O.cmake文件的文件夹CMAKE_MODULE_PATH，该文件夹和build文件夹并列放在该项目文件夹中。

参考：https://blog.csdn.net/github_38704428/article/details/78522374

error:no matching function for call to‘g2o::BlockSolver<g2o::BlockSolverTraits<3,1>>::BlockSolver(g2o::BlockSolver<g2o::BlockSolverTraits<3,1> >::LinearSolverType*&)’

代码书写问题，参考：https://blog.csdn.net/weixin_38358435/article/details/79082733

https://blog.csdn.net/handsome_for_kill/article/details/53288771

error：while loading shared libraries: libg2o_core.so: cannot open shared　object file: No such file or directory

参考：https://blog.csdn.net/icameling/article/details/78400413

error:stray‘\343’in program

１）可能程序本身的语法没有问题，但是，出错行中包含不被识别的字符，比如空格的格式不对；

２）将程序中出错行前面的空格删除，重新插入空格或tab键，重新编译，错误消失。