Error Running fd-emu-onoff.cc

[Mohamed Bouti]

Hello, 

I hope everyone is doing well...I'm know in ns3 end i'm trying to execute the emulation example called  fd-emu-onoff.cc, i follow the steps as mentioned in the script and while executing it i ha 

[Mohamed Bouti]

Hello, 

Help!!🙏🙏

I hope everyone is doing well...I'm new in ns3 and i'm trying to execute the emulation example called  fd-emu-onoff.cc, i follow the steps as mentioned in the script and while executing it i had an error in both laptops :

[0/2] Re-checking globbed directories...

ninja: no work to do.

msg="EmuFdNetDeviceHelper::SetFileDescriptor (): Can't get interface index", +0.000000000s -1 file=/home/hxlb3422/workspace/ns-allinone-3.38/ns-3.38/src/fd-net-device/helper/emu-fd-net-device-helper.cc, line=122

NS_FATAL, terminating

terminate called without an active exception

Command 'build/src/fd-net-device/examples/ns3.38-fd-emu-onoff-default --serverMode=1' died with <Signals.SIGABRT: 6>.

since i just installed NS3  i'm very much new on it i couldn't understand the error.... if you can guide me to understand how to solve this error please 

you can find below the script of the example 

Thank you in advance 

[Tommaso Pecorella]

Hi, two (common) mistakes are:

• Launch the script without sudo (to use emu you need to be superuser). This might be fixed by configuring ns-3 with "--enable-sudo".
• Mismatch in the device name. The script by default searches for "eth0", but in your computer the network interface might have a different name. Use "ip add show" to see the interface name (for example, on my computer it's named "enp5s0").

[Mohamed Bouti]

Thank you very much sir for your response ! I'll follow your instructions

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