Fix compile errors

paddle/operators/net_op_test.cc

@@ -60,9 +60,9 @@ TEST(OpKernel, all) {
 
 TEST(NetOp, insert_op) {
   NetOp net;
-  auto op1 = std::shared_ptr<NOP>(
-      new NOP("empty", {{"X", {"x"}}, {"W", {"w1"}}, {"b", {"b1"}}},
-              {{"Out", {"y"}}}, {}));
+  auto op1 = std::shared_ptr<framework::NOP>(
+      new framework::NOP("empty", {{"X", {"x"}}, {"W", {"w1"}}, {"b", {"b1"}}},
+                         {{"Out", {"y"}}}, {}));
   net.AddOp(op1);
   net.InsertOp(0, op1);
   ASSERT_EQ(2UL, net.ops_.size());