pyglet.gl.lib.GLException: Invalid enum.

[sasdallas]

Bug Report

I am attempting to make a game in Arcade. I am doing step 1 of the Platforming tutorial.\ It will not allow me to run a window.

Actual behavior:

Error message:

pyglet.gl.lib.GLException: (0x500): Invalid enum. An unacceptable value is specified for an enumerated argument.

Expected behavior:

The window to open.

Steps to reproduce/example code:

Code:

import arcade

WIDTH = 800
HEIGHT = 640
TITLE = "game"

class MainWindow(arcade.Window):
    def __init__(self):
        super().__init__(WIDTH, HEIGHT, TITLE)
        arcade.set_background_color(arcade.csscolor.CORNFLOWER_BLUE)

    def setup(self):
        pass

    def on_draw(self):
        self.clear()

w = MainWindow()
w.setup()
arcade.run()

Then, just run python3 main.py.

Other information:

I am running this on GitPod.

Docker container info:\ Container: gitpod/workspace-full-vnc (Uses noVNC)

Thank you!

[Cleptomania]

As far as I’m aware Gitpod does not support GPU accelerated applications(OpenGL, Vulkan, etc etc). Arcade requires a GPU with support for OpenGL 3.3 or higher.

It does work with repl.it, however tends to be quite laggy unless you use a boosted repl from their paid plan.

[sasdallas]

@Cleptomania That’s odd. I have replit, and am using a boosted repl, however it doesn’t work.

Instead, the repl exits with the error ImportError: Library ‘GL’ not found.

[sasdallas]

How do I fix this issue?

[sasdallas]

I’ll close this issue and start a new one for replit.