with respect to the error message obtained in comment 8: this message comes from libstdc++-6.dll
............................................. terminate called after throwing an instance of 'std::runtime_error'
what(): locale::facet::_S_create_c_locale name not valid
with respect to the error message obtained in comment 8:
this message comes from libstdc++-6.dll
....... ....... ....... ....... ....... ....... ... error'
terminate called after throwing an instance of 'std::runtime_
what(): locale: :facet: :_S_create_ c_locale name not valid