Undefined symbols for architecture x86_64:

[Stelsav]

Hi all, 

I am using the example of lena-simple, and i am trying to add flow monitor so i can create some plots. (maybe its possible with the output files already generated?)

Using this code:

// Flow monitor

  FlowMonitorHelper fl;

  Ptr<FlowMonitor> monitor;

  monitor = fl.Install(ueNodes);

  monitor = fl.Install(enbNodes);

  monitor->SetAttribute ("DelayBinWidth", DoubleValue(0.001));

  monitor->SetAttribute ("JitterBinWidth", DoubleValue(0.001));

  monitor->SetAttribute ("PacketSizeBinWidth", DoubleValue(20));

  Simulator::Stop (Seconds (1.05));

  Simulator::Run ();

  flowMonitor->SerializeToXmlFile("test.xml", true, true);

but i am getting this error,

[1225/2533] Compiling src/lte/examples/lena-simple.cc

[2417/2533] Linking build/src/lte/examples/ns3.26-lena-simple-debug

Undefined symbols for architecture x86_64:

  "ns3::FlowMonitorHelper::FlowMonitorHelper()", referenced from:

      _main in lena-simple.cc.10.o

  "ns3::FlowMonitorHelper::~FlowMonitorHelper()", referenced from:

      _main in lena-simple.cc.10.o

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

I am on Mac OS Sierra (10.12.1) using ns3.26.

I ve tried searching this mailing list for resolution but so far no good. 
Is there something i can do or is this just an incompatibility issue?

Thanks

[Tommaso Pecorella]

Hi,

move your script to the scratch directory. 
The LTE module does not depends on flow-monitor, and it won't be linked with the LTE examples, causing a linking error.

T.