Error:Could not find a task generator for the name 'ns3-location-service'

[Reena]

hi

I am trying to patch GPSR protocol in NS 3.21. After executing command ./waf build,i am getting folowing error:

Waf: Entering directory `/home/reena/ns3/ns-allinone-3.16/ns-3.16/build'
Could not find a task generator for the name 'ns3-location-service'

Please help to remove this error.

Thanks in advance

[Tom Henderson]

This is likely a syntax problem with one or more of your wscripts. It
seems from your message that you are mixing versions between ns-3.16 and
ns-3.21 (possibly the GPSR is from ns-3.16 and you are trying to build
it within ns-3.21).

You may need to upgrade the wscript syntax in the GPSR modules. Where
it says this in ns-3.16:

headers = bld.new_task_gen(features=['ns3header'])

it should say this in ns-3.21:

headers = bld(features='ns3header')

and where it says this in ns-3.16:

bld.add_subdirs('examples')

it should say this in ns-3.21:

bld.recurse('examples')

[reena kasana]

Thanks for replying

I am using NS3.16. I wrote NS3.21 by mistake(initially,i installed 3.21)

I am attaching screenshot of terminal window and wscript of gpsr. i checked wscript syntex as per your reply.

I didn't found any mistake.

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ReeNa

[Konstantinos]

Dear Reena

The GPSR patch comprises two NS-3 modules: gpsr and location-service
Make sure that you have both of them in your /src folder

[reena kasana]

Thanks Konstantinos. you were right. I forgot to put location-service folder in /src.

Now , i am getting following error:
In file included from ./ns3/internet-stack-helper.h:29:0,
                 from ./ns3/csma-star-helper.h:27,
                 from ../src/csma-layout/model/csma-star-helper.cc:21:
./ns3/ipv4-l3-protocol.h:119:23: error: invalid covariant return type for ‘virtual ns3::Ptr<ns3::Ipv4L4Protocol> ns3::Ipv4L3Protocol::GetProtocol(int) const’
./ns3/ipv4.h:355:29: error:   overriding ‘virtual ns3::Ptr<ns3::IpL4Protocol> ns3::Ipv4::GetProtocol(int) const’

Please tell how to remove this error

Note: Screenshot attached

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ReeNa

[Tom Henderson]

On 11/04/2014 06:42 AM, reena kasana wrote:
> Thanks for replying
>
> I am using NS3.16. I wrote NS3.21 by mistake(initially,i installed 3.21)
> I am attaching screenshot of terminal window and wscript of gpsr. i
> checked wscript syntex as per your reply.
> I didn't found any mistake.

Yes, Konstantinos is right, the error you were having was due to missing
module, not an incorrect wscript. The sign of an old wscript formatting
(which changed between ns-3.16 and ns-3.17 release) would be the
following error:

headers = bld.new_task_gen(features=['ns3header'])

AttributeError: 'BuildContext' object has no attribute 'new_task_gen'

- Tom

[Ali Javeed]

I have same problem, could you help me? "Could not find a task generator for the name 'ns3-fncs'

[Akanksha k]

I am trying to install NR-U into ns-3-dev repo for installing 5G LENA.  After executing command ./Waf build, I am getting following error:

Waf: Entering directory '/home/ns3/desktop/ns-3.32/build'

Error: Could not find a task generator for the name 'ns3-nr-u-master' 

Please help to remove this error.  

thanks in advance.

(ps: I don't know which wscript folder to edit)