Found the following significant warnings:
  phylopars_rcpp.cpp:125:11: warning: 'void arma::set_stream_err2(std::ostream&)' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/debug.hpp:101) [-Wdeprecated-declarations]
  phylopars_rcpp.cpp:125:37: warning: 'void arma::set_stream_err2(std::ostream&)' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/debug.hpp:101) [-Wdeprecated-declarations]
  phylopars_rcpp.cpp:128:23: warning: 'typename arma::enable_if2<arma::is_supported_blas_type<typename T1::elem_type>::value, const arma::Op<T1, arma::op_inv> >::result arma::inv(const arma::Base<typename T1::elem_type, T1>&, const char*) [with T1 = arma::Mat<double>; typename arma::enable_if2<arma::is_supported_blas_type<typename T1::elem_type>::value, const arma::Op<T1, arma::op_inv> >::result = const arma::Op<arma::Mat<double>, arma::op_inv>; typename T1::elem_type = double]' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/fn_inv.hpp:63) [-Wdeprecated-declarations]
  phylopars_rcpp.cpp:144:11: warning: 'void arma::set_stream_err2(std::ostream&)' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/debug.hpp:101) [-Wdeprecated-declarations]
  phylopars_rcpp.cpp:144:37: warning: 'void arma::set_stream_err2(std::ostream&)' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/debug.hpp:101) [-Wdeprecated-declarations]
  phylopars_rcpp.cpp:146:29: warning: 'typename arma::enable_if2<arma::is_supported_blas_type<typename T1::elem_type>::value, const arma::Glue<T1, T2, arma::glue_solve_gen> >::result arma::solve(const arma::Base<typename T1::elem_type, T1>&, const arma::Base<typename T1::elem_type, T2>&, const char*) [with T1 = arma::Mat<double>; T2 = arma::Mat<double>; typename arma::enable_if2<arma::is_supported_blas_type<typename T1::elem_type>::value, const arma::Glue<T1, T2, arma::glue_solve_gen> >::result = const arma::Glue<arma::Mat<double>, arma::Mat<double>, arma::glue_solve_gen>; typename T1::elem_type = double; typename T1::elem_type = double]' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/fn_solve.hpp:70) [-Wdeprecated-declarations]
  phylopars_rcpp.cpp:179:11: warning: 'void arma::set_stream_err2(std::ostream&)' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/debug.hpp:101) [-Wdeprecated-declarations]
  phylopars_rcpp.cpp:179:37: warning: 'void arma::set_stream_err2(std::ostream&)' is deprecated (declared at d:/RCompile/CRANpkg/lib/3.7/RcppArmadillo/include/armadillo_bits/debug.hpp:101) [-Wdeprecated-declarations]
See 'd:/Rcompile/CRANpkg/local/3.7/Rphylopars.Rcheck/00install.out' for details.