During the installation of Kimera-RPGO, the preliminary preparations were okay, but such problems were encountered.
error: #error This compiler appears to be too old to be supported by Eigen
This problem refers to the eigen version is too high.
Therefore, it is recommended to add the following two lines of code to cmakelist:
add_compile_options(-std=c++14)
include_directories("/usr/include/eigen3") Then you can!