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Re: [Discuss-gnuradio] qt frequency sink runtime error

From: Marcus Müller
Subject: Re: [Discuss-gnuradio] qt frequency sink runtime error
Date: Thu, 10 Aug 2017 19:27:39 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1

Hm, ok, I was hoping for some parser problems within GRC to produce errorneous configuration of your QT GUI Frequency sink, but nooope. Exactly, byte-wise, the same file as mine.

Soooo, there's something crashing in Qt GUI.

So, how did you get on Ubuntu 14.04? you say apt-get, but Canonical's repos only carry 3.7.2 for 14.04; since this might really be a binary compatibility problem, this is my main focus.



On 08/10/2017 05:54 PM, Ruediger Bauernschmitt wrote:

I'm using gnuradio-companion installed using apt-get on Ubuntu 14.04.5 LTS running on a Lenovo T60.

The dialtone example works fine but once I'm using the frequency sink like e.g. in the resampler_demo.grc I get the following Runtime Error:

Generating: '/tmp/resampler_demo.py'

Executing: /usr/bin/python2 -u /tmp/resampler_demo.py

Traceback (most recent call last):
  File "/tmp/resampler_demo.py", line 284, in <module>
  File "/tmp/resampler_demo.py", line 272, in main
    tb = top_block_cls()
  File "/tmp/resampler_demo.py", line 104, in __init__
    1 #number of inputs
File "/usr/local/lib/python2.7/dist-packages/gnuradio/qtgui/qtgui_swig.py", line 1371, in make
    return _qtgui_swig.freq_sink_c_make(*args, **kwargs)
RuntimeError: std::exception

Any ideas?

Best wishes,


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