Kivy安装及运行问题（Python、Anaconda、VS Code环境）

Hey there, let's work through your Kivy problems together—they're common enough, so we can sort this out!

1. Is the "Could Not Find C:\WINDOWS\TEMP\xxx.bat" prompt an error? #

Short answer: No, this is usually a harmless minor glitch, not a critical failure.

Here's why it happens: When Conda installs packages like Kivy, it creates temporary .bat scripts in your Windows Temp folder to handle setup tasks. Sometimes, these scripts get deleted automatically (either by Conda itself, Windows cleanup tools, or even your antivirus) before the installer finishes checking for them. The error message is just the installer noticing the script is already gone, but it doesn't affect the core Kivy installation.

To confirm Kivy was installed properly, open your activated Conda environment and run this command:

python -c "import kivy; print(kivy.__version__)"

If it outputs a version number (like 2.2.1), Kivy is installed correctly and you can ignore that bat file error.

2. Why isn't my Kivy App showing up on screen? #

There are a few common culprits here—let's go through them one by one:

a. Your code might be missing key components #

First, test with a minimal, guaranteed-working Kivy app to rule out code issues. Copy this into a .py file and run it:

from kivy.app import App
from kivy.uix.label import Label

class MinimalTestApp(App):
    def build(self):
        return Label(text="Kivy is working!")

if __name__ == "__main__":
    MinimalTestApp().run()

If this doesn't show a window, the problem is with your environment, not your code.

b. You're not using the right Conda environment in VS Code #

VS Code might be using a different Python interpreter (not the one where you installed Kivy). Check the bottom-right corner of VS Code—you'll see the current interpreter listed. Click it, then select the Conda environment where you installed Kivy (it should have a name like base or whatever custom env you used).

c. Graphics backend conflicts #

Kivy relies on OpenGL, and sometimes Windows graphics drivers cause issues. Try forcing Kivy to use a software-based backend by adding these lines at the very top of your code:

import os
os.environ['KIVY_GL_BACKEND'] = 'angle_sdl2'

This bypasses your system's OpenGL driver and uses a more compatible fallback.

d. Permission issues #

Occasionally, VS Code doesn't have the right permissions to create a window. Try closing VS Code, right-clicking its icon, and selecting "Run as administrator" before running your app again.

e. Remote/virtual desktop limitations #

If you're running VS Code on a remote desktop, virtual machine, or WSL, Kivy might struggle to render windows because these environments often have limited graphics support. Try running the app directly on a physical Windows machine if possible.

内容的提问来源于stack exchange，提问作者Anders Pedersen