[ndnSIM] Adding Trace Source to App

[RABARI JEET.HASMUKHBHAI]

Hello, I am trying to add a trace source to App using the following line.

Config::ConnectWithoutContext
("/NodeList/*/ApplicationList/*/$ns3::ndn::App/TransmittedInterests",
MakeCallback (&Experiment::InterestTraceCallback, this));

But I am getting compilation error.

/usr/local/include/ns3-dev/ns3/callback.h:628:5:   required from here
/usr/local/include/ns3-dev/ns3/ptr.h:712:14: error: invalid use of
incomplete type ‘class ns3::ndn::App’
  712 |       m_ptr->Ref ();

How to add custom trace source to App?

Any simple example code would be helpful.

Thanks and Regards,
Jeet Rabari
National Institute of Technology, Calicut
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