关于视觉SLAM十四讲sophus库安装报错

Sophus安装：

git clone https://github.com/strasdat/sophus.git

cd sophus

mkdir build

cmake ..

make

这时候系统报错

error: lvalue required as left operand of assignment
   32 |   unit_complex_.real() = 1.;
      |   ~~~~~~~~~~~~~~~~~~^~
error: lvalue required as left operand of assignment
   32 |   unit_complex_.real() = 1.;
      |   ~~~~~~~~~~~~~~~~~~^~

这是因为实例unit_complex_的方法real()和imag()不能用=直接赋值：

SO2::SO2()
{
  // unit_complex_.real() = 1.;
  unit_complex_.real(1.);
  // unit_complex_.imag() = 0.;
  unit_complex_.imag(0.);
}

具体步骤：

cd ./sophus/sophus

sudo nano so2.cpp

保存后退出，再进入build文件夹中进行cmake

sudo make