Unable to view trained data

[Nemesys01]

I am trying to visualize the trained data, but the renderer fails with boost::python::error_already_set().
From debugging I have determined the error occurs on execution of line 32 of window.cpp.
At some point of the codes execution,
boost::python::api::object_base::object_base (this=0x7fffffffe180, rhs=...)
in boost/python/object_core.hpp throws the error_already_set

I built mass in the conda environment of python 3.6.10 and am using boost 1.71. I built dart 6.3 with this boost version.

[lasagnaphil]

Try using an older version of boost (this project used 1.66). I also had the same error while using the current version of boost.
Or you can use my fork, which replaces the boost dependency with pybind11 (https://github.com/lasagnaphil/MASS/tree/pybind11)