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bastibl / gr-ieee802-11

IEEE 802.11 a/g/p Transceiver
https://wime-project.net/
GNU General Public License v3.0
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wifi_loopback.grc - flowgraph stops with warning messages "Could not find port out in" and "system" #398

Closed f-zumegen closed 2 months ago

f-zumegen commented 11 months ago

Hi Bastian,

I run into a problem when executing the loopback example to verify that I installed everything correctly. From my understanding, I follow all the steps described in the repo readme until "Checking your installation". When I load and execute wifi_loopback.grc inside gnuradio-companion, this is the console output:

Loading: "/home/fzumegen/gr-ieee802-11/examples/wifi_loopback.grc"
>>> Done

Generating: '/home/fzumegen/gr-ieee802-11/examples/wifi_loopback.py'
>>> Warning: This flow graph may not have flow control: no audio or RF hardware blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU congestion.

Executing: /usr/bin/python3 -u /home/fzumegen/gr-ieee802-11/examples/wifi_loopback.py

Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
Qt GUI: Could not restore geometry: restoreGeometry(self, Union[QByteArray, bytes, bytearray]): argument 1 has unexpected type 'NoneType'
MAPPER: encoding: 0
chunks_to_symbols :info: set_min_output_buffer on block 5 to 207744
fft_v_fftw :info: set_min_output_buffer on block 3 to 2077440
ofdm_cyclic_prefixer :info: set_min_output_buffer on block 5 to 2077440
ofdm_carrier_allocator_cvc :info: set_min_output_buffer on block 6 to 207744
chunks_to_symbols :info: set_min_output_buffer on block 7 to 415488
tagged_stream_mux :info: set_min_output_buffer on block 8 to 207744
flowgraph :warning: Could not find port out in:
flowgraph :warning:   system

>>> Done (return code -11)

As a result, no GUI shows up and I don't think any Wifi packets are exchanged in loopback. Can you help me get this running after all?

Best Frederik

bastibl commented 11 months ago

Such things are usually a version issue. Please check the branch (=version) of this module with your GNU Radio version (see readme). If that's not the case, make sure that there are no artifacts from previous installations or installation attempts on your system.

f-zumegen commented 11 months ago

Thanks for your reply.

I’m using the maint 3.10 branch and GNU radio is 3.10.x. I will try a new install.