Tom, I use Ubuntu 9.04 and QWT-5.0.2. Thank you! Ally At 2010-12-22 22:55:41,"Tom Rondeau" <trondeau1...@gmail.com> wrote: >2010/12/22 lishan_wh <lishan...@126.com>: >> 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? > >Tom
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