[ndnSIM] [EXT] Error running a scenario after making a change

Mon Aug 3 17:02:22 PDT 2020

Dear Junxiao,

Thank you for your reply, but sadly both the statements are correct. Here
are details on what happened actually:
1. I ran our previous scenario, and I was able to get the results
(including the trace files) as expected.
2. I then copied the .cc file from the scratch folder. I tried running the
scenario, this time with this copied file. I got the error messages that I
sent in my email.
3. I then deleted the copied file and ran the original file. To my
surprise, I was able to get the results as expected. I have the results
file from 12:46 PM today.
4. I then added a single line (an empty line) to this .cc file, saved it
and tried running the scenario. I again got the errors. I then tried
removing the line, it didn't help and I kept getting the error messages.
5. I then ran ./waf configure. I have ever since not been able to run the
scenario.

I haven't upgraded or downgraded any of the packages throughout the steps I
have mentioned above.

How can I check the version of ndnSim, NFD, and ndn-cxx from my installed
files?

Thank you!

Sincerely,
Pawan Subedi

On Mon, Aug 3, 2020 at 3:55 PM Spyridon Mastorakis <smastorakis at unomaha.edu>
wrote:

> Right.
>
> LocalControlHeader was deleted from ndn-cxx a few years back if I remember
> correctly.
>
> Spyridon (Spyros) Mastorakis
> Assistant Professor
> Computer Science Department
> University of Nebraska, Omaha
> Peter Kiewit Institute Room 175A
> https://sites.google.com/site/spyridonmastorakis
>
> On Aug 3, 2020, at 3:52 PM, Junxiao Shi via ndnSIM <
> ndnsim at lists.cs.ucla.edu> wrote:
>
> Hi Pawan
>
> Either "added a single line to the .cc file in the scratch folder" or "Our
> complete setup was working without any issues before adding this line" is
> false.
> Did you perform any of the following actions?
>
>    - Upgrade or downgrade ndnSIM (e.g. git pull)
>    - Upgrade or downgrade the scenario template
>    - Upgrade or downgrade the ndn-cxx or NFD submodules
>
>
> Most likely, one of the above is not ndnSIM v2.0, but a later version.
> "LocalControlHeader" is present in ndnSIM v2.0 (released 5 years ago), but
> deleted in later versions.
>
> Yours, Junxiao
>
> On Mon, Aug 3, 2020 at 2:48 PM Pawan Subedi <psubedi at crimson.ua.edu>
> wrote:
>
>> *External Email*
>> Dear ndnSim team,
>>
>> My research group had a scenario using ndnSim2.0 and it was running all
>> good. I made a simple change to the scenario (added a single line to the
>> .cc file in the scratch folder) and now when I try to run the scenario, it
>> throws errors. Our complete setup was working without any issues before
>> adding this line. Here are the error messages and I am not sure why a
>> previously working system is throwing these errors.
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:90:43: error:
>> ‘LocalControlHeader’ in namespace ‘ndn::nfd’ does not name a type
>>    isEmptyFilteredLocalControlHeader(const ndn::nfd::LocalControlHeader&
>> header) const;
>>                                            ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:90:73: error: ISO C++ forbids
>> declaration of ‘header’ with no type [-fpermissive]
>>    isEmptyFilteredLocalControlHeader(const ndn::nfd::LocalControlHeader&
>> header) const;
>>                                                                          ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp: In member function ‘bool
>> nfd::LocalFace::decodeAndDispatchInput(const ndn::Block&)’:
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:142:38: error:
>> ‘ndn::nfd::LocalControlHeader’ has not been declared
>>      const Block& payload =
>> ndn::nfd::LocalControlHeader::getPayload(element);
>>                                       ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:156:33: error:
>> ‘ndn::nfd::LocalControlHeader’ has not been declared
>>                mask |= ndn::nfd::LocalControlHeader::ENCODE_NEXT_HOP;
>>                                  ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:158:16: error: ‘class
>> ndn::Interest’ has no member named ‘getLocalControlHeader’
>>              i->getLocalControlHeader().wireDecode(element, mask);
>>                 ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp: At global scope:
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:192:52: error:
>> ‘LocalControlHeader’ in namespace ‘ndn::nfd’ does not name a type
>>  LocalFace::isEmptyFilteredLocalControlHeader(const
>> ndn::nfd::LocalControlHeader& header) const
>>                                                     ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:192:82: error: ISO C++
>> forbids declaration of ‘header’ with no type [-fpermissive]
>>  LocalFace::isEmptyFilteredLocalControlHeader(const
>> ndn::nfd::LocalControlHeader& header) const
>>
>>         ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp: In member function ‘bool
>> nfd::LocalFace::isEmptyFilteredLocalControlHeader(const int&) const’:
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:199:23: error:
>> ‘ndn::nfd::LocalControlHeader’ has not been declared
>>      mask |= ndn::nfd::LocalControlHeader::ENCODE_INCOMING_FACE_ID;
>>                        ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:201:17: error: request for
>> member ‘empty’ in ‘header’, which is of non-class type ‘const int’
>>    return header.empty(mask);
>>                  ^
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp: In member function
>> ‘ndn::Block nfd::LocalFace::filterAndEncodeLocalControlHeader(const
>> Packet&)’:
>> ./ns3/ndnSIM/NFD/daemon/face/local-face.hpp:210:23: error:
>> ‘ndn::nfd::LocalControlHeader’ has not been declared
>>      mask |= ndn::nfd::LocalControlHeader::ENCODE_INCOMING_FACE_ID;
>>
>> I tried recompiling the project with ./waf configure and still, the error
>> exists.
>>
>> Thank you!
>>
>> Sincerely,
>> Pawan Subedi
>>
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