Attribute Qt::AA_UseSoftwareOpenGL must be set before QCoreApplication is created

Question

So my environment is:

• Windows 10, up to date as of 2019-11-08
• Installed Python 3.6, Spyder 4 via miniconda
• run miniconda shell
• activate virtualenv
• run Spyder

I get the following (in the shell):

(base) C:\Users\bbate>activate keras-gpu  
(keras-gpu) C:\Users\bbate>spyder  
Attribute Qt::AA_UseSoftwareOpenGL must be set before QCoreApplication is created.  
[968:13624:1108/111945.157:ERROR:permission_manager_qt.cpp(82)] NOT IMPLEMENTEDUnsupported permission type: 13  

However, Spyder4 launches and works, but every now and it it just hangs, and I've seen other notes suggesting it has something to do with the qt dll but I do not know how to fix this

I've seen various posts but nothing addressing this error

BTW, this is a "clean" install; the drive had just been rebuilt and everything being installed fresh, so there isn't much clutter around, other versions, etc.

Answer 1

(Spyder maintainer here) This problem is going to be fixed in Spyder 4.1.0, to be released later in March 2020.