Hi everybody,
I just installed gnuradio on Ubuntu 16.04 and tested a really simple flow graph in GRC, an USRP source connected to a WX FFT sink, however I got this error:
File "/home/ziang/workarea-grc/top_block.py", line 166, in <module>
main()
File "/home/ziang/workarea-grc/top_block.py", line 160, in main
tb = top_block_cls()
File "/home/ziang/workarea-grc/top_block.py", line 110, in __init__
peak_hold=False,
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/fftsink_gl.py", line 92, in __init__
win=win,
File "/usr/local/lib/python2.7/dist-packages/gnuradio/fft/logpwrfft.py", line 65, in __init__
fft = self._fft_block[0](fft_size, True, fft_window)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/fft/fft_swig.py", line 157, in make
return _fft_swig.fft_vcc_make(fft_size, forward, window, shift, nthreads)
RuntimeError: std::exception
Then I tried to use 'uhd_fft' command, and got this error:
Traceback (most recent call last):
File "/usr/local/bin/uhd_fft", line 500, in <module>
main()
File "/usr/local/bin/uhd_fft", line 483, in main
tb = uhd_fft(args)
File "/usr/local/bin/uhd_fft", line 214, in __init__
len(self.channels) #number of inputs
File "/usr/local/lib/python2.7/dist-packages/gnuradio/qtgui/qtgui_swig.py", line 2479, in make
return _qtgui_swig.waterfall_sink_c_make(size, wintype, fc, bw, name, nconnections, parent)
RuntimeError: std::exception
I was using gnuradio and GRC in UBUNTU 14.04 and it was working all right. The version of gnuradio I have now is 5.4.0 and GRC version is 3.7.11.1, operating system is UBUNTU 16.04. And I was always using this command to install gnuradio and uhd:
Is there anyway I can solve this problem? Is it a version problem or I'm missing any module? When not calling any graphic functions or blocks gnuradio works fine.
Thank you so much.
Best regards,
Ziang.