关于fatal error: sophus/so3.h: 没有那个文件或目录与error: lunit_complex_.real() = 1.；问题解决

1.fatal error: sophus/so3.h说明sophus库安装不对

参考GitHub - zlwang7/S-FAST_LIO: A simplified implementation of FAST_LIO (with Chinese note)

git clone https://github.com/strasdat/Sophus.git
cd Sophus
git checkout a621ff
mkdir build
cd build
cmake ../ -DUSE_BASIC_LOGGING=ON
make
sudo make install

2.在安装sophus过程中出现

/home/fengqq/My_build/Sophus/sophus/so2.cpp:32:26: error: lvalue required as left operand of assignment
   32 |   unit_complex_.real() = 1.;

解决方案：在上述路径下寻找so2.cpp文件进行如下修改：