[ndnSIM] An error when running scenario

[Sirapop Theeranantachai]

Are you using Conda by any chance? I have never used kiwi before since my
simulation doesn't need visualization.

On Fri, Apr 5, 2024 at 1:44 AM 李怿曈 Yitong LI <yitongli at hkust-gz.edu.cn>
wrote:

> I’m confused about kiwi, I’ve installed kiwi using “pip3 install kiwi”,
> and it succeeded. When I checked using “import kiwi.ui” in python3, it gave
> an error. I’ve checked many info online, no solution has been proved to
> work. I wonder if the error given is really caused by kiwi’s installation?
>
> Thanks,
> Caster
>
> 2024年4月4日 上午3:32，Sirapop Theeranantachai <sirapop741 at gmail.com> 写道：
>
> 1. The error is different from yours.6-node bottleneck shows that you lack
> some python module. The error is SIGSEGV which means segmentation fault (a
> type of crash). Your code in scratch fails assertion check (not really a
> crash).
>
> 2. In the example, you can either try without -visualize or try solving
> module issue by installing kiwi and gnomedesktop
>
> 3. If not solved, try to see which line is causing segmentation fault by
> eithrr using gdb (advanced) or printing out lines and see how far the code
> goes.
>
>
> On Wed, Apr 3, 2024, 4:01 AM 李怿曈 Yitong LI <yitongli at hkust-gz.edu.cn>
> wrote:
>
>> Hi,
>>
>> I’ve regenerated the error from online example “6-node bottleneck
>> topology” (
>> https://ndnsim.net/current/examples.html#node-bottleneck-topology). When
>> I run it using “./waf —run xxx —visualize”, then click simulate button in
>> the graphic interface, it will automatically exit and give errors below in
>> one second.
>>
>> *caster at ubuntu:~/ndnSim/ns-3$ ./waf --run test-bottleneck --visualize*
>> *Waf: Entering directory `/home/caster/ndnSim/ns-3/build'*
>> *Waf: Leaving directory `/home/caster/ndnSim/ns-3/build'*
>> *Build commands will be stored in build/compile_commands.json*
>> *'build' finished successfully (1.930s)*
>> *Could not load plugin 'show_last_packets.py': No module named 'kiwi.ui'*
>> *Could not load icon applets-screenshooter due to missing gnomedesktop
>> Python module*
>> *scanning topology: 6 nodes...*
>> *scanning topology: calling graphviz layout*
>> *scanning topology: all done.*
>> *Command ['/home/caster/ndnSim/ns-3/build/scratch/test-bottleneck',
>> '--SimulatorImplementationType=ns3::VisualSimulatorImpl'] terminated with
>> signal SIGSEGV. Run it under a debugger to get more information (./waf
>> --run <program> --gdb").*
>>
>> Except for the error reason for this example, I’ll appreciate it very
>> much if you can give me some guidance on how to find out the problem when
>> running scenarios, as the errors normally don’t indicate where are they
>> occur.
>>
>> Many thanks,
>> Caster
>>
>> 2024年4月3日 下午5:30，Sirapop Theeranantachai <sirapop741 at gmail.com> 写道：
>>
>>  It appears that your code may have issue with
>> ns3::RandomRectanglePositionAllocator.
>> Which specific online example did you use, and are you sure it gives you
>> exactly the same error? Would be great if you could provide the error
>> message from the official documentation.
>>
>> On Wed, Apr 3, 2024, 1:26 AM 李怿曈 Yitong LI <yitongli at hkust-gz.edu.cn>
>> wrote:
>>
>>> Hi all,
>>>
>>> I’ve installed ndnSIM and tested it using example code. But when I tried
>>> to run some example codes from the online documentation and my own
>>> scenarios, it will appears the same error. For some programs, it will
>>> appear immediately when executing them, some other programs will show this
>>> error after visualization module is loaded and run for a few seconds. I’ve
>>> attached the log below and my source code. I appreciate your help!
>>>
>>> *caster at ubuntu:~/ndnSim/ns-3$ ./waf --run ndn-random --visualize*
>>> *Waf: Entering directory `/home/caster/ndnSim/ns-3/build'*
>>> *Waf: Leaving directory `/home/caster/ndnSim/ns-3/build'*
>>> *Build commands will be stored in build/compile_commands.json*
>>> *'build' finished successfully (3.593s)*
>>> *assert failed. cond="uid != 0", msg="Assert in TypeId::LookupByName:
>>> 0:100 not found", +0.000000000s -1 file=../src/core/model/type-id.cc,
>>> line=834*
>>> *terminate called without an active exception*
>>> *Command ['/home/caster/ndnSim/ns-3/build/scratch/ndn-random',
>>> '--SimulatorImplementationType=ns3::VisualSimulatorImpl'] terminated with
>>> signal SIGIOT. Run it under a debugger to get more information (./waf --run
>>> <program> --gdb”).*
>>> Thanks,
>>> Caster
>>> _______________________________________________
>>> ndnSIM mailing list
>>> ndnSIM at lists.cs.ucla.edu
>>> https://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
>>>
>>
>>
>
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