QGtkStyle could not resolve GTK I have installed Orange 3 in Ubuntu 18.04 using Anaconda. It runs just fine, but the menus appear as blank.



I obtain the following error when I execute it:

QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries.

I have been trying to sort it for days without success.

Any idea of how to fix this?
A quick fix has been published at https://stackoverflow.com/a/50583925/3866828

It works adding

export QT_STYLE_OVERRIDE=gtk2

at the end of the ~/.bashrc file. Then it's a matter of executing
source ~/.bashrc to see the content of the menus the next time that Orange 3 is loaded.