Re: Regarding the error in creating an OOT module in GR3.9

[Volker Schroer]

I think you have a version mix. gnuradio 3.9 uses std::shared_ptr but
you boost::shared_ptr which is 3.8
 So you need a version of gr-packetizer that supports 3.9.

-- Volker

Am 09.08.21 um 11:42 schrieb Yash Agrawal 18410 via GNU Radio, the Free
& Open-Source Toolkit for Software Radio:
> Hello everyone,
>   am currently working on the project "'Implementation of a packet
> encoder/decoder pair in the GNU radio framework'".I am getting some
> serious errors while running the project on the above mentioned
> environment shown as:
> merlin@merlin:~/chchc/gnuradioproject-master/gr-packetizer/build$ make
> Scanning dependencies of target gnuradio-packetizer
> [  3%] Building CXX object
> lib/CMakeFiles/gnuradio-packetizer.dir/preamble_header_payload_demux_impl.cc.o
> /home/merlin/chchc/gnuradioproject-master/gr-packetizer/lib/preamble_header_payload_demux_impl.cc:
> In static member function ‘static
> gr::packetizer::preamble_header_payload_demux::sptr
> gr::packetizer::preamble_header_payload_demux::make(int, int, int, const
> string&, const string&, bool, size_t, const string&, double, const
> std::vector<std::__cxx11::basic_string<char> >&, size_t, int, int)’:
> /home/merlin/chchc/gnuradioproject-master/gr-packetizer/lib/preamble_header_payload_demux_impl.cc:90:9:
> error: could not convert ‘gnuradio::get_initial_sptr(T*) [with T =
> gr::packetizer::preamble_header_payload_demux_impl]()’ from
> ‘std::shared_ptr<gr::packetizer::preamble_header_payload_demux_impl>’ to
> ‘gr::packetizer::preamble_header_payload_demux::sptr {aka
> boost::shared_ptr<gr::packetizer::preamble_header_payload_demux>}’
>         return gnuradio::get_initial_sptr
>                ~~~~~~~~~~~~~~~~~~~~~~~~~~
>           (new preamble_header_payload_demux_impl(
>           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>             header_len,
>             ~~~~~~~~~~~
>             items_per_symbol,
>             ~~~~~~~~~~~~~~~~~
>             guard_interval,
>             ~~~~~~~~~~~~~~~
>             length_tag_key,
>             ~~~~~~~~~~~~~~~
>             trigger_tag_key,
>             ~~~~~~~~~~~~~~~~
>             output_symbols,
>             ~~~~~~~~~~~~~~~
>             itemsize,
>             ~~~~~~~~~
>             timing_tag_key,
>             ~~~~~~~~~~~~~~~
>             samp_rate,
>             ~~~~~~~~~~
>             special_tags,
>             ~~~~~~~~~~~~~
>             header_padding,
>             ~~~~~~~~~~~~~~~
>             preamble_len,
>             ~~~~~~~~~~~~~
>             header_len_divider
>             ~~~~~~~~~~~~~~~~~~
>           ));
>           ~~
> lib/CMakeFiles/gnuradio-packetizer.dir/build.make:62: recipe for target
> 'lib/CMakeFiles/gnuradio-packetizer.dir/preamble_header_payload_demux_impl.cc.o'
> failed
> make[2]: ***
> [lib/CMakeFiles/gnuradio-packetizer.dir/preamble_header_payload_demux_impl.cc.o]
> Error 1
> CMakeFiles/Makefile2:174: recipe for target
> 'lib/CMakeFiles/gnuradio-packetizer.dir/all' failed
> make[1]: *** [lib/CMakeFiles/gnuradio-packetizer.dir/all] Error 2
> Makefile:140: recipe for target 'all' failed
> make: *** [all] Error 2
>
> My current working environment is gnuradio 3.9 on ubuntu 18.04. Hence
> any leads will be thankful.
> -/ Thanks and Regards/
> /Yash Agrawal/
> /Electrical Engineering and Computer Sciences Department
> /
> /18410/