Error while executing "python setup.py build"

[pythonaddict]

trafficstars

I have Windows 10 64-bit, Python 3.9 64 bit.

I installed PyQt5 with:

pip install PyQt5

I'm trying to built mupen64plus-ui-python in cmd with:

python setup.py build

But I get:

running build
running build_qt
error: [WinError 2] The system cannot find the file specified

How can I fix it?

[CHJ85]

You can't, as this program is built for python (outdated) and not python3.

[gen2brain]

@CHJ85 "program" is not built. nor is outdated, what did you mean by that? There are binaries for people that want to try and use it, and then there is the source for people that know how to build it, but nothing is "built".

[CHJ85]

I mean the program has to be updated to python3.