Windows kivy app successfully builds using PyInstaller, but doesn't work

Question

I tried to create an executable file in Windows from a kivy project with PyInstaller, and even though it appears to have been successfully created, when I try to run it, I get this

What could cause this? I'm relatively new to kivy, and any help will be much appreciated

Answer 1

well, I actually figured it out myself. Though I don't think that my solution is in any way elegant and it might cause some other problems in the future, but i just edited the pyi_rth_pkgutil.py from PyInstaller package directory (how it is now, how it used to be) and reran the pyinstaller package creation script. It just worked after that