Resolve compilation issues (more accurate with headers)
diff --git a/helper/ccnx-encoding-helper.h b/helper/ccnx-encoding-helper.h
index bea5087..acce922 100644
--- a/helper/ccnx-encoding-helper.h
+++ b/helper/ccnx-encoding-helper.h
@@ -23,7 +23,7 @@
 
 #include <sys/types.h>
 
-#include "ns3/ccnb-parser-common.h"
+#include "ccnb-parser/ccnb-parser-common.h"
 #include "ns3/ptr.h"
 #include "ns3/nstime.h"
 #include "ns3/buffer.h"