From df984cf4b0b7f2a50228e188b30a7fa65d656548 Mon Sep 17 00:00:00 2001
From: Tom Henderson <tomh@tomh.org>
Date: Sun, 3 Mar 2024 11:19:19 -0800
Subject: [PATCH] core: Log failures to connect trace source

---
 src/core/model/object-base.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/model/object-base.cc b/src/core/model/object-base.cc
index b82888283..4c2e9a0eb 100644
--- a/src/core/model/object-base.cc
+++ b/src/core/model/object-base.cc
@@ -326,6 +326,7 @@ ObjectBase::TraceConnectWithoutContext(std::string name, const CallbackBase& cb)
     Ptr<const TraceSourceAccessor> accessor = tid.LookupTraceSourceByName(name);
     if (!accessor)
     {
+        NS_LOG_DEBUG("Cannot connect trace " << name << " on object of type " << tid.GetName());
         return false;
     }
     bool ok = accessor->ConnectWithoutContext(this, cb);
@@ -340,6 +341,7 @@ ObjectBase::TraceConnect(std::string name, std::string context, const CallbackBa
     Ptr<const TraceSourceAccessor> accessor = tid.LookupTraceSourceByName(name);
     if (!accessor)
     {
+        NS_LOG_DEBUG("Cannot connect trace " << name << " on object of type " << tid.GetName());
         return false;
     }
     bool ok = accessor->Connect(this, context, cb);