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Re: Re: [Discuss-gnuradio] import qtgui error

From: Tom Rondeau
Subject: Re: Re: [Discuss-gnuradio] import qtgui error
Date: Thu, 23 Dec 2010 17:11:18 -0500

On Wed, Dec 22, 2010 at 7:13 PM, lishan_wh <address@hidden> wrote:
> Tom,
>    I use Ubuntu 9.04 and QWT-5.0.2.
>    Thank you!
> Ally

Strange, I'm able to run this example on an Ubuntu 8.04 running
QWT-5.0.2, QT 4.3.4, and GNU Radio v. 3.3.0.

Are you sure you don't have multiple installations of QT4, QWT, or GNU
Radio anywhere?


> At 2010-12-22 22:55:41,"Tom Rondeau" <address@hidden> wrote:
>>2010/12/22 lishan_wh <address@hidden>:
>>> I tried the code of 'Tutorial - Using the QT GUI Blocks in GNU Radio', but
>>> error occurred.
>>> Traceback (most recent call last):
>>>   File "qt_basics.py", line 4, in <module>
>>>     from gnuradio.qtgui import qtgui
>>>   File
>>> "/opt/gnuradio/3.3.0/lib/python2.6/site-packages/gnuradio/qtgui/qtgui.py",
>>> line 6, in <module>
>>>     import _qtgui
>>> ImportError: /opt/gnuradio/3.3.0/lib/libgnuradio-qtgui-3.3.0.so.0: undefined
>>> symbol: _ZN9QwtPicker5resetEv
>>> Who can tell me what is the problem? Thank you!
>>What version of QWT are you using? What's your OS?

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