fixing errors

src/mlpack/tests/feedforward_network_test.cpp

@@ -944,5 +944,5 @@ TEST_CASE("CheckInputShapeTest", "[FeedForwardNetworkTest]")
 
   REQUIRE_THROWS_MATCHES(model.Train(trainData, trainLabels, opt),
   						 std::logic_error,
-  						 Message(expectedMsg));
+  						 Catch::Matchers::Message(expectedMsg));
 }

src/mlpack/tests/recurrent_network_test.cpp

@@ -931,5 +931,5 @@ TEST_CASE("CheckInputShapeTest", "[RecurrentNetworkTest]")
 
   REQUIRE_THROWS_MATCHES(model.Train(input, labels, opt),
   						 std::logic_error,
-  						 Message(expectedMsg));
+  						Catch::Matchers::Message(expectedMsg));
 }