Hi Thangaraj - 2 responses: (1) your question is a good one for the GNU
Radio discussion list (
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio); your query has
nothing to do with UHD or USRPs that I can see, and hence doesn't seem to
be relevant here in UHD/ USRP discussion. (2) There is no GR 3.10 release
yet, but rather this branch is in development & might have significant bugs
-- maybe like the one you found. I would strongly recommend using the
latest 3.8 or 3.9 release, since those are current and fairly well tested;
which one you use is up to you & your application needs. Good luck! - MLD
On Fri, Oct 1, 2021 at 6:33 AM Thangaraj Mukara Dhakshinamoorthy <
thanga...@komro.net> wrote:
> Hello everyone,
>
>
>
> *My system config:*
>
> Host OS: Windows 10
>
> Guest OS: VirtualBox Ubuntu 20.04.3 LTS
>
> UHD version: 3.15.0.0
>
> GNU Radio version: 3.10.0.0
>
> SDR Device : Ettus USRP N320
>
>
>
> I have installed the gnuradio v3.10 recently, after the installation I got
> the below error in a simple *QT* *GUI sink block > Window Type:*
>
>
>
> The error is gone if I enter some integer value in the window type menu.
> But when I tried to build this flowgraph, I am getting the following *catch
> exception* error*:*
>
>
>
> *Console logs:*
>
>
>
> Generating: '/home/thangz/Desktop/gnuradio/rtlsdr_fm_spectrum_simple.py'
>
> Generate Error: 'catch_exceptions'
>
> >>> Failure
>
> Traceback (most recent call last):
>
> File "/usr/lib/python3/dist-packages/gnuradio/grc/gui/Application.py",
> line 720, in _handle_action
>
> generator.write()
>
> File
> "/usr/lib/python3/dist-packages/gnuradio/grc/core/generator/top_block.py",
> line 83, in write
>
> for filename, data in self._build_python_code_from_template():
>
> File
> "/usr/lib/python3/dist-packages/gnuradio/grc/core/generator/top_block.py",
> line 123, in _build_python_code_from_template
>
> 'catch_exceptions': fg.get_option('catch_exceptions')
>
> File "/usr/lib/python3/dist-packages/gnuradio/grc/core/FlowGraph.py",
> line 182, in get_option
>
> return self.options_block.params[key].get_evaluated()
>
> KeyError: 'catch_exceptions'
>
> ^CTraceback (most recent call last):
>
> File "/usr/bin/gnuradio-companion", line 92, in <module>
>
> run_main()
>
> File "/usr/bin/gnuradio-companion", line 85, in run_main
>
> exit(main())
>
> File "/usr/lib/python3/dist-packages/gnuradio/grc/main.py", line 85, in
> main
>
> sys.exit(app.run())
>
> File "/usr/lib/python3/dist-packages/gi/overrides/Gio.py", line 44, in
> run
>
> return Gio.Application.run(self, *args, **kwargs)
>
> File "/usr/lib/python3.8/contextlib.py", line 120, in __exit__
>
> next(self.gen)
>
> File "/usr/lib/python3/dist-packages/gi/_ossighelper.py", line 251, in
> register_sigint_fallback
>
> signal.default_int_handler(signal.SIGINT, None)
>
> KeyboardInterrupt
>
>
>
> Is there any fix/solution for this error?
>
>
>
>
>
> Regard,
>
> Thangaraj
>
>
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