PyViz not working

[Lucas Baião Pires]

Hi,

When I try to run PyViz, I get the following output:

Waf: Entering directory `/home/lucas/workspace/bake/source/ns-3.29/build'

[1767/2000] Linking build/lib/libns3-dev-test-debug.so

[1784/2000] Linking build/lib/libns3-dev-netanim-debug.so

[1798/2000] Compiling src/visualizer/model/visual-simulator-impl.cc

[1848/2000] Compiling build/src/aodv/bindings/ns3module.cc

[1849/2000] Compiling build/src/applications/bindings/ns3module.cc

../src/visualizer/model/visual-simulator-impl.cc: In member function ‘virtual void ns3::VisualSimulatorImpl::Run()’:

../src/visualizer/model/visual-simulator-impl.cc:119:38: error: cannot convert ‘char**’ to ‘wchar_t**’ for argument ‘2’ to ‘void PySys_SetArgv(int, wchar_t**)’

       PySys_SetArgv (1, (char**) argv);

                                      ^

Waf: Leaving directory `/home/lucas/workspace/bake/source/ns-3.29/build'

Build failed

 -> task in 'ns3-visualizer' failed with exit status 1 (run with -v to display more information)

How can I fix this error?

[houssem guemer]

hi i have the same problem, if you or anyone have a fix please share it, thank you.

[艾玲玲]

Had the same error, seems not fixed yet? Anyone have a solution?

[Tom Henderson]

On 3/1/21 3:34 AM, 艾玲玲 wrote:

Had the same error, seems not fixed yet? Anyone have a solution?

This bug was reported to be a Python 3 issue in the past.  If you have to use ns-3.29 version, you might want to try the patches found here:

https://www.nsnam.org/bugzilla/show_bug.cgi?id=2734

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[艾玲玲]

Great to have you reply.

Now I am trying to use the ns3-mmwave which is built on ns-3.31 version. But I cannot build without '--disable-python'. 

Since if I turn the python on, the PyViz would report bunch or errors like this, is there any solution for this?

(I find that on the ns3 wiki page, it's said the lte module is not fully supported with PyViz, but the wiki page might have outdated information, wonder if there's any solution now?)

[2583/3062] Linking build/src/traffic-control/examples/ns3-dev-pfifo-vs-red-debug

[2585/3062] Linking build/src/traffic-control/examples/ns3-dev-codel-vs-pfifo-basic-test-debug

[2587/3062] Linking build/src/traffic-control/examples/ns3-dev-codel-vs-pfifo-asymmetric-debug

[2588/3062] Linking build/src/traffic-control/examples/ns3-dev-pie-example-debug

[2590/3062] Linking build/src/uan/examples/ns3-dev-uan-cw-example-debug

[2592/3062] Linking build/src/uan/examples/ns3-dev-uan-rc-example-debug

[2601/3062] Compiling build/src/mesh/bindings/ns3module.cc

[2603/3062] Linking build/src/virtual-net-device/examples/ns3-dev-virtual-net-device-debug

[2604/3062] Compiling build/src/mmwave/bindings/ns3module.cc

In file included from src/lte/bindings/ns3module.cc:1:0:

src/lte/bindings/ns3module.h:9300:10: error: ‘TraceFadingLossModel’ in namespace ‘ns3’ does not name a type

     ns3::TraceFadingLossModel *obj;

          ^~~~~~~~~~~~~~~~~~~~

src/lte/bindings/ns3module.h:9309:1: error: expected class-name before ‘{’ token

 {

 ^

src/lte/bindings/ns3module.h:9312:71: error: expected ‘)’ before ‘const’

     PyNs3TraceFadingLossModel__PythonHelper(ns3::TraceFadingLossModel const & arg0)

                                                                       ^~~~~

src/lte/bindings/ns3module.h: In constructor ‘PyNs3TraceFadingLossModel__PythonHelper::PyNs3TraceFadingLossModel__PythonHelper()’:

src/lte/bindings/ns3module.h:9317:36: error: expected class-name before ‘(’ token

         : ns3::TraceFadingLossModel(), m_pyself(NULL)

                                    ^

src/lte/bindings/ns3module.h:9317:36: error: expected ‘{’ before ‘(’ token

src/lte/bindings/ns3module.h: In member function ‘void PyNs3TraceFadingLossModel__PythonHelper::DoDispose__parent_caller()’:

src/lte/bindings/ns3module.h:9336:52: error: cannot call member function ‘virtual void ns3::SpectrumPropagationLossModel::DoDispose()’ without object

     { ns3::SpectrumPropagationLossModel::DoDispose(); }

                                                    ^

src/lte/bindings/ns3module.h: In member function ‘void PyNs3TraceFadingLossModel__PythonHelper::NotifyNewAggregate__parent_caller()’:

src/lte/bindings/ns3module.h:9340:39: error: cannot call member function ‘virtual void ns3::Object::NotifyNewAggregate()’ without object

     { ns3::Object::NotifyNewAggregate(); }

Thanks.

Best Regards