Hi Team!<br><br>Could you guys tell me why I am having this problem: <br>I followed this link when installing my ndnSIM <i>https://github.com/named-data-ndnSIM/scenario-template</i><br>now when I try to run examples  from this page <i>http://ndnsim.net/2.3/examples.html </i>I get the below error:<br><br>pierre@pierre-VirtualBox:<font color="#FF0000">~/ndnSIM/my-simulations$ ./waf --run ndn-simple</font><br><font color="#008000">Waf: Entering directory `/home/pierre/ndnSIM/my-simulations/build'<span style="background-color: rgb(255, 255, 255);"><br>Waf: Leaving directory `/home/pierre/ndnSIM/my-simulations/build'<br>'build' finished successfully (0.036s)</span></font><br>Traceback (most recent call last):<br>File "/home/pierre/ndnSIM/my-simulations/.waf-1.8.5-d178df7a9bb732db109001d6b461550f/waflib/Scripting.py", line 103, in waf_entry_point<br>run_commands()<br>File "/home/pierre/ndnSIM/my-simulations/.waf-1.8.5-d178df7a9bb732db109001d6b461550f/waflib/Scripting.py", line 166, in run_commands<br>run_command('shutdown')<br>File "/home/pierre/ndnSIM/my-simulations/.waf-1.8.5-d178df7a9bb732db109001d6b461550f/waflib/Scripting.py", line 155, in run_command<br>ctx.execute()<br>File "/home/pierre/ndnSIM/my-simulations/.waf-1.8.5-d178df7a9bb732db109001d6b461550f/waflib/Context.py", line 92, in execute<br>self.recurse([os.path.dirname(g_module.root_path)])<br>File "/home/pierre/ndnSIM/my-simulations/.waf-1.8.5-d178df7a9bb732db109001d6b461550f/waflib/Context.py", line 133, in recurse<br>user_function(self)<br>File "/home/pierre/ndnSIM/my-simulations/wscript", line 122, in shutdown<br>return subprocess.call (argv)<br>File "/usr/lib/python2.7/subprocess.py", line 168, in call<br>return Popen(*popenargs, **kwargs).wait()<br>File "/usr/lib/python2.7/subprocess.py", line 390, in __init__<br>errread, errwrite)<br>File "/usr/lib/python2.7/subprocess.py", line 1024, in _execute_child<br>raise child_exception<br><font color="#FF0000">OSError: [Errno 2] No such file or directory</font><br>pierre@pierre-VirtualBox:~/ndnSIM/my-simulations$ <br>