Re: [Discuss-gnuradio] AttributeError while executing a simple example.

[Tom Rondeau]

On Sat, Nov 16, 2013 at 9:02 AM, Rikhu Prasad <address@hidden> wrote:
> HI,
>
> I had installed GNU Radio recently and tried to execute a simple example as
> shown in the image below. But it throws me the following error. I referred
> various sources and I came to a guessing conclusion that this would be an
> issue with installation. But I am sure, everything went right during
> installing. I am not able to figure out what and where it went wrong. Kindly
> help!
>
> Error:
>
> Traceback (most recent call last):
>   File "/home/vishnu/top_block.py", line 85, in <module>
>     tb = top_block()
>   File "/home/vishnu/top_block.py", line 48, in __init__
>     self.top_layout.addWidget(self._qtgui_freq_sink_x_0_win)
>   File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py",
> line 100, in __getattr__
>     return getattr(self._tb, name)
> AttributeError: 'top_block_sptr' object has no attribute 'top_layout'
>
>
> <http://gnuradio.4.n7.nabble.com/file/n44755/flow_graph.jpg>
>
>
> Is the error due to the GUI component as I don't get the error when I
> execute other simple example using audio source, throttle and a audio sink.
> Could anyone give me an idea where would be the issue?


It's likely that you have the "Generate Options" in the "Options"
block set wrong (probably to WX GUI) while you are trying to use a
QTGUI sink. Change that option to "QT GUI" and you should be fine.

Tom