Re: [Discuss-gnuradio] Run-time error while executing a simple flowgraph in GNU Radio companion

[NIKOS BIZANIS]

 As an update, I realized that in the "Options" block, "Generate Options" was not set to WX GUI so i set it. Now the WX GUI FFT Sink opens the Top Block, but nothing is displayed there, I can't see any plot and it quickly fails. The only error message that I get is:

Warning: failed to XInitThreads()

Using Volk machine: avx_32_mmx

Any ideas?

Thank you again,

Nikos

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From: discuss-gnuradio-bounces+address@hidden [discuss-gnuradio-bounces+address@hidden on behalf of NIKOS BIZANIS address@hidden
Sent: Wednesday, March 18, 2015 1:25 PM
To: address@hidden
Subject: Re: [Discuss-gnuradio] Run-time error while executing a simple flowgraph in GNU Radio companion

After running ldconfig I still get an error, but a somewhat different one:

Warning: failed to XInitThreads()

Traceback (most recent call last):

  File "/home/nikos/top_block.py", line 105, in <module>

    tb = top_block()

  File "/home/nikos/top_block.py", line 56, in __init__

    self.GetWin(),

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/hier_block2.py", line 93, in __getattr__

    return getattr(self._impl, name)

AttributeError: 'top_block_sptr' object has no attribute 'GetWin'

Is it still the case that I am missing some library, or it is installed elsewhere than it should?

Thank you again,

Nikos

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From: discuss-gnuradio-bounces+address@hidden [discuss-gnuradio-bounces+address@hidden on behalf of Marcus Müller address@hidden
Sent: Wednesday, March 18, 2015 1:08 PM
To: address@hidden
Subject: Re: [Discuss-gnuradio] Run-time error while executing a simple flowgraph in GNU Radio companion

Ah well, in that case: it seems like you've successfully installed the block definition XML files to a place GRC can find them, but that does not apply to the library you're missing now. If "sudo ldconfig" doesn't help, make sure that
make install

inside your gnuradio/build directory actually is successful. If you get errors about missing permissions, you might want to run the command via sudo:
sudo make install

You might also want to have a look at gnuradio/build/install_manifest.txt, which should list all the files that were installed. look for a line containing the library you're missing -- where did it get installed to? Where did, for example, gnuradio-companion get installed to? Is that the same as what "which gnuradio-companion" is telling you?

Best regards,
Marcus

On 03/18/2015 01:01 PM, NIKOS BIZANIS wrote:

Hi Marcus,

What I meant by "able to use", was that I was able to find the blocks using the search facility and put the block to a flowgraph. I had not actually tried to build and execute a flowgraph containing any of these blocks, and now that I tried this was the result.

Greetings,

Nikos

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From: discuss-gnuradio-bounces+address@hidden [discuss-gnuradio-bounces+address@hidden] on behalf of Marcus Müller [address@hidden]
Sent: Wednesday, March 18, 2015 12:48 PM
To: address@hidden
Subject: Re: [Discuss-gnuradio] Run-time error while executing a simple flowgraph in GNU Radio companion

Hi Nikos,

you said earlier you were able to use WX widgets. Did you do something in between that and your system now not being able to find the libgnuradio-wxgui library?

Greetings,
Marcus

On 03/18/2015 12:34 PM, NIKOS BIZANIS wrote:

Hey all,

Just to start experimenting with GNU Radio and companion I just created a simple flowgraph consisting of a Signal Source Block and a WX GUI FFT Sink connected to it, to see if the diagram will be generated. I get a run-time error, namely:

Executing: "/home/nikos/top_block.py"

Traceback (most recent call last):

  File "/home/nikos/top_block.py", line 12, in <module>

    from gnuradio import wxgui

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/__init__.py", line 32, in <module>

    from wxgui_swig import *

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/wxgui_swig.py", line 28, in <module>

    _wxgui_swig = swig_import_helper()

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/wxgui_swig.py", line 24, in swig_import_helper

    _mod = imp.load_module('_wxgui_swig', fp, pathname, description)

ImportError: libgnuradio-wxgui-3.7.6.1.so.0.0.0: cannot open shared object file: No such file or directory

What could be wrong here?

Thank you,

Nikos

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