close #2185 and close #4095

R-package/DESCRIPTION

@@ -9,7 +9,7 @@ Description: MXNet is a deep learning framework designed for both efficiency
     and flexibility. It allows you to mix the flavours of deep learning programs
     together to maximize the efficiency and your productivity.
 License: BSD
-URL: https://github.com/dmlc/mxnet/R-package
+URL: https://github.com/dmlc/mxnet/tree/master/R-package
 BugReports: https://github.com/dmlc/mxnet/issues
 Imports:
     methods,

R-package/src/ndarray.cc

@@ -217,7 +217,7 @@ void NDArray::Save(const Rcpp::List& data_lst,
                    const std::string& filename) {
   std::vector<std::string> lst_names;
   if (HasName(data_lst)) {
-    lst_names = data_lst.names();
+    lst_names = Rcpp::as<std::vector<std::string> >(data_lst.names());
   }
   size_t num_args = data_lst.size();
   std::vector<NDArrayHandle> handles(num_args);