Failed to install Eigen/Dense: No such file or directory and Fix It

[WeiyueZ]

error message

If you haven't download eigin and find_eigen() try to download it for you, it will cause this problem.

fatal error: Eigen/Dense: No such file or directory 3 | #include <Eigen/Dense> | ^~~~~~~~~~~~~ compilation terminated.

how to fix

In setup.py line 172 change:    find_eigen() into     os.path.join(_src_path, find_eigen()）