安装依赖项
sudo apt-get install libqt4-dev qt4-qmake libqglviewer-dev libsuitesparse-dev qtdeclarative5-dev libcxsparse3.1.2
安装g2o
git clone https://github.com/RainerKuemmerle/g2o.git
cd g2o
mkdir build
cd build
cmake ..
make
sudo make install
![sudo apt-get update 出错 Updating from such a repository can‘t be done securely, and is therefore[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)