[ndnSIM] An error in running ./waf

[Amin Karami]

Hi Alex,
I installed all the requirements for ndnSIM. When i run the command: 
"./waf --run=ndn-simple --vis", I face with this error:
error while loading shared libraries: libboost_graph.so.1.53.0: cannot 
open shared object file: No such file or directory
Command 
['/home/amin/Documents/ndnSIM/ns-3/build/src/ndnSIM/examples/ns3-dev-ndn-simple-debug', 
'--SimulatorImplementationType=ns3::VisualSimulatorImpl'] exited with 
code 127

But, when i run the command: "LD_LIBRARY_PATH=/usr/local/lib ./waf 
--run=ndn-simple --vis", It works well :-)

What it is the problem?

I looking forward to your response.


Best Regards,
Amin