#1135136 Flow graphs fail to run with ImportError

Package:
gnuradio
Source:
gnuradio
Description:
GNU Radio Software Radio Toolkit
Submitter:
Kumar Appaiah
Date:
2026-04-28 06:59:02 UTC
Severity:
normal
#1135136#5
Date:
2026-04-28 06:57:58 UTC
From:
To:
Trying to run any flow graph gives me this error:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gnuradio/qtgui/__init__.py",
line 19, in <module>
    from .qtgui_python import *
ImportError: /usr/lib/python3/dist-packages/gnuradio/qtgui/qtgui_python.cpython-313-x86_64-linux-gnu.so:
undefined symbol:
_ZN2gr5qtgui11matrix_sink4makeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjjbS9_S9_P7QWidget

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/tmp/untitled.py", line 13, in <module>
    from gnuradio import qtgui
  File "/usr/lib/python3/dist-packages/gnuradio/qtgui/__init__.py",
line 23, in <module>
    from .qtgui_python import *
ImportError: /usr/lib/python3/dist-packages/gnuradio/qtgui/qtgui_python.cpython-313-x86_64-linux-gnu.so:
undefined symbol:
_ZN2gr5qtgui11matrix_sink4makeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjjbS9_S9_P7QWidget

Please let me know if any other information is needed.

Thanks.

Kumar