App crashes at startup

[LiamGallagher737]

Bevy version

main branch 9ef840e

Relevant system information

`AdapterInfo { name: "NVIDIA GeForce RTX 3060 Ti", vendor: 4318, device: 9353, device_type: DiscreteGpu, driver: "NVIDIA", driver_info: "522.06", backend: Vulkan }`

`SystemInfo { os: "Windows 10 Home", kernel: "19044", cpu: "AMD Ryzen 7 5800X 8-Core Processor", core_count: "8", memory: "31.9 GiB" }`

What you did

Created a new project with the following code

use bevy::prelude::*;
fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .run();
}

This is the Cargo.toml

bevy = { git = "https://github.com/bevyengine/bevy", rev = "9ef840e" }

What went wrong

The app crashed right after the window opened with the following error

thread 'main' panicked at 'called glDebugMessageCallback but it was not loaded.', E:\rust\.cargo\registry\src\github.com-1ecc6299db9ec823\glow-0.12.0\src\gl46.rs:4234:5

Additional information

A workaround is to add the following when setting up DefaultPlugins

.set(RenderPlugin {
    wgpu_settings: WgpuSettings {
        backends: Some(Backends::PRIMARY),
        ..Default::default()
    },
    ..default()
}),

Here are two relevant discord threads
https://discord.com/channels/691052431525675048/1073274796697198622
https://discord.com/channels/691052431525675048/1073786235996352632

[alice-i-cecile]

We should investigate changing the default WgpuSettings to the workaround.

[superdump]

We just moved to enabling all backends. What I find odd is that it claims to be using the Vulkan backend but hits this panic about GL. I wonder why. Perhaps some probing is done. That has the potential to panic? @cwfitzgerald?

[cwfitzgerald]

This is gfx-rs/wgpu#2540

[Elabajaba]

Summarizing discussions on this from discord:

This appears to be because it tries to load libEGL.dll and libGLESv2.dll, which means that if it can't find them locally, it also tries searching in your PATH for them, and because Angle is common there's a chance that those are somewhere in your PATH. (https://github.com/google/angle)

The problem is that it's finding old versions of those dlls (because people package Angle once and don't bother updating it...) and trying to use them (and they're so outdated they don't support glDebugMessageCallback, they only support glDebugMessageCallbackKHR) which seems to be the root cause of this crash.

[LiamGallagher737]

This is now fixed after an update for glow.