Switch to Face::getIoContext()

Change-Id: Ice05b0b8e9af4ed4651abcf6fc4ea6b84c34da7c
diff --git a/tools/dump/ndndump.cpp b/tools/dump/ndndump.cpp
index 4b28c63..00f2422 100644
--- a/tools/dump/ndndump.cpp
+++ b/tools/dump/ndndump.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2011-2022, Regents of the University of California.
+ * Copyright (c) 2011-2023, Regents of the University of California.
  *
  * This file is part of ndn-tools (Named Data Networking Essential Tools).
  * See AUTHORS.md for complete list of ndn-tools authors and contributors.
@@ -31,6 +31,7 @@
 #include <iomanip>
 #include <sstream>
 
+#include <ndn-cxx/lp/fields.hpp>
 #include <ndn-cxx/lp/nack.hpp>
 #include <ndn-cxx/lp/packet.hpp>
 #include <ndn-cxx/net/ethernet.hpp>