gfx-rs/wgpu · error

Error in {operation}: {cause}

Error message

Error in {operation}: {cause}

What it means

Fatal catch-all in the wgpu-core context wrapper: an operation (poll, get_current_texture, etc.) returned an error where the API contract offers no way to hand it back to the caller, so the formatted error is turned into a panic naming the operation. The faulty input is the underlying error cause returned by wgpu-core.

Source

Thrown at wgpu/src/backend/wgpu_core.rs:52

use crate::{dispatch::DispatchAdapter, util::Mutex};

use wgc::error::format_error;

#[derive(Clone)]
pub struct ContextWgpuCore(Arc<wgc::instance::Instance>);

impl fmt::Debug for ContextWgpuCore {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("ContextWgpuCore")
            .field("type", &"Native")
            .finish()
    }
}

#[track_caller]
#[cold]
fn handle_error_fatal(cause: impl Error + WasmNotSendSync + 'static, operation: &'static str) -> ! {
    panic!("Error in {operation}: {f}", f = format_error(&cause));
}

impl ContextWgpuCore {
    pub unsafe fn from_hal_instance<A: hal::Api>(hal_instance: A::Instance) -> Self {
        Self(wgc::instance::Instance::from_hal_instance::<A>(
            "wgpu".to_owned(),
            hal_instance,
        ))
    }

    /// # Safety
    ///
    /// - The raw instance handle returned must not be manually destroyed.
    pub unsafe fn instance_as_hal<A: hal::Api>(&self) -> Option<&A::Instance> {
        unsafe { self.0.as_hal::<A>() }
    }

    pub fn from_core_instance(core_instance: Arc<wgc::instance::Instance>) -> Self {

View on GitHub (pinned to 3e11ff59bf)

Solutions

1. Use the fallible API variants (e.g. get_current_texture on a texture-consuming surface with error handling) where available
2. Inspect the formatted cause to find the real wgpu-core validation/driver error and fix its root cause

When it happens

Trigger: Thrown at wgpu/src/backend/wgpu_core.rs:52 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of gfx-rs/wgpu@3e11ff59bf (2026-09-03). Data as JSON: /api/errors/cf45da0df83ab5f0. Report an issue: GitHub.