Registration problems:
  symbol ‘`_rvinecopulib_bicop_cdf_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_cdf_cpp`, u, bicop_r)
  symbol ‘`_rvinecopulib_bicop_check_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_check_cpp`, bicop_r)
  symbol ‘`_rvinecopulib_bicop_hfunc1_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_hfunc1_cpp`, u, bicop_r)
  symbol ‘`_rvinecopulib_bicop_hfunc2_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_hfunc2_cpp`, u, bicop_r)
  symbol ‘`_rvinecopulib_bicop_hinv1_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_hinv1_cpp`, u, bicop_r)
  symbol ‘`_rvinecopulib_bicop_hinv2_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_hinv2_cpp`, u, bicop_r)
  symbol ‘`_rvinecopulib_bicop_loglik_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_loglik_cpp`, u, bicop_r)
  symbol ‘`_rvinecopulib_bicop_par_to_tau_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_par_to_tau_cpp`, bicop_r)
  symbol ‘`_rvinecopulib_bicop_pdf_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_pdf_cpp`, u, bicop_r)
  symbol ‘`_rvinecopulib_bicop_select_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_select_cpp`, data, family_set, par_method, 
       nonpar_method, mult, selcrit, presel)
  symbol ‘`_rvinecopulib_bicop_tau_to_par_cpp`’ not in namespace:
   .Call(`_rvinecopulib_bicop_tau_to_par_cpp`, bicop_r, tau)
  symbol ‘`_rvinecopulib_rvine_matrix_check_cpp`’ not in namespace:
   .Call(`_rvinecopulib_rvine_matrix_check_cpp`, matrix)
  symbol ‘`_rvinecopulib_vinecop_cdf_cpp`’ not in namespace:
   .Call(`_rvinecopulib_vinecop_cdf_cpp`, u, vinecop_r, N)
  symbol ‘`_rvinecopulib_vinecop_check_cpp`’ not in namespace:
   .Call(`_rvinecopulib_vinecop_check_cpp`, vinecop_r)
  symbol ‘`_rvinecopulib_vinecop_inverse_rosenblatt_cpp`’ not in namespace:
   .Call(`_rvinecopulib_vinecop_inverse_rosenblatt_cpp`, U, vinecop_r)
  symbol ‘`_rvinecopulib_vinecop_loglik_cpp`’ not in namespace:
   .Call(`_rvinecopulib_vinecop_loglik_cpp`, u, vinecop_r)
  symbol ‘`_rvinecopulib_vinecop_pdf_cpp`’ not in namespace:
   .Call(`_rvinecopulib_vinecop_pdf_cpp`, u, vinecop_r)
  symbol ‘`_rvinecopulib_vinecop_select_cpp`’ not in namespace:
   .Call(`_rvinecopulib_vinecop_select_cpp`, data, matrix, family_set, 
       par_method, nonpar_method, mult, truncation_level, tree_criterion, 
       threshold, selection_criterion, select_truncation_level, 
       select_threshold, preselect_families, show_trace)
See chapter ‘System and foreign language interfaces’ in the ‘Writing R
Extensions’ manual.