error: vanet_routing_compare.cc

[Shilpi Mittal]

Dear All,

Kindly someone help me out to solve this Problem:

ubuntu@ubuntu:~/ns-3-dev$ ./waf --run "scratch/vanet-routing-compare --protocol=2 --scenario=2"
Waf: Entering directory `/home/ubuntu/ns-3-dev/build'
Waf: Leaving directory `/home/ubuntu/ns-3-dev/build'
Build commands will be stored in build/compile_commands.json
'build' finished successfully (1.486s)
Routing Setup for AODV
assert failed. cond="m_ptr", msg="Attempted to dereference zero pointer", +0.000000000s -1 file=./ns3/ptr.h, line=630
terminate called without an active exception
Command ['/home/ubuntu/ns-3-dev/build/scratch/vanet-routing-compare', '--protocol=2', '--scenario=2'] terminated with signal SIGIOT. Run it under a debugger to get more information (./waf --run <program> --gdb").

[Shilpi Mittal]

Hi teammates,

Kindly solve my problem. Send ur suggestions please

[Tom Henderson]

On 4/8/21 7:13 PM, Shilpi Mittal wrote:
> Hi teammates,
>
> Kindly solve my problem. Send ur suggestions please

I am not sure about the below program error; did you modify ns-3 or the
program vanet-routing-compare.cc?

If you download and build the latest development version of ns-3-dev,
this program should run successfully as you configured it:

$ ./waf --run 'vanet-routing-compare --protocol=2 --scenario=2'

Since the ns-3.33 release in January, some bugs were fixed in this
example program, so if you are using a released version of ns-3, this
program may not work for the above configuration. However, it does not
produce the error that you list below.

To debug errors like this in general, we recommend to use gdb:

https://www.nsnam.org/wiki/HOWTO_use_gdb_to_debug_program_errors

- Tom

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[Shilpi Mittal]

Thanks Tom for your support. Bug has been resolved.👍

[Jian Liu]

Could I ask how did you solve the problem? I am facing the same error.

[Tom Henderson]

On 4/4/22 11:34, Jian Liu wrote:
> Could I ask how did you solve the problem? I am facing the same error.

Either using git or using a web browser, you can have a look at the git
history of vanet-routing-compare.cc and see the changes that were made
recently.

https://gitlab.com/nsnam/ns-3-dev/-/commits/master/src/wave/examples/vanet-routing-compare.cc