[ndnSIM] Dumb Requester

[Amin Karami]

Hi!
I have ran dumb request by following code:
         ndn::AppHelper consumerHelper ("DumbRequester");
         consumerHelper.SetPrefix ("/dst1");
         consumerHelper.Install ("Src1");

When i ran the simulator, an error occurs:

assert failed. cond="uid != 0", msg="Assert in TypeId::LookupByName: 
DumbRequester not found", file=../src/core/model/type-id.cc, line=419
terminate called without an active exception
Command ['/home/bluebit/Documents/NDN 
Simulator/ns-3/build/scratch/ndn-dumb', 
'--SimulatorImplementationType=ns3::VisualSimulatorImpl'] terminated 
with signal SIGIOT. Run it under a debugger to get more information 
(./waf --run <program> --command-template="gdb --args %s <args>").