I installed gnuradio on Fedora 5.4.17-200.fc31.x86_64 using sudo dnf install gnuradio
Afterwards when I attempt to run gnuradio-companion (typing gnuradio-companion in a terminal) I see several errors at start up Warning: restarting the docstring loader (crashed while loading 'qtgui_bercurve_sink') Warning: restarting the docstring loader (crashed while loading 'qtgui_const_sink_x') Warning: restarting the docstring loader (crashed while loading 'qtgui_edit_box_msg') Warning: restarting the docstring loader (crashed while loading 'qtgui_freq_sink_x') Warning: restarting the docstring loader (crashed while loading 'qtgui_histogram_sink_x') Warning: docstring loader crashed too often The gnuradio GUI opens up but using QT widgets causes a seg fault. Any help appreciated. Mike