exo-explore/exo · error · StopImageGenerationException

Stopping image generation at step {t + 1}/{len(time_steps)}

Error message

Stopping image generation at step {t + 1}/{len(time_steps)}

What it means

Error "Stopping image generation at step {t + 1}/{len(time_steps)}" thrown in exo-explore/exo.

Source

Thrown at src/exo/worker/engines/image/pipeline/runner.py:591

                    latents=latents,
                    prompt_data=prompt_data,
                    num_sync_steps=num_sync_steps,
                )

                ctx.in_loop(  # pyright: ignore[reportAny]
                    t=t,
                    latents=latents,
                    time_steps=time_steps,
                )

                mx.eval(latents)

                if t in capture_steps and self.is_last_stage and not self._cancelling:
                    yield (latents, t)

            except KeyboardInterrupt:  # noqa: PERF203
                ctx.interruption(t=t, latents=latents)  # pyright: ignore[reportAny]
                raise StopImageGenerationException(
                    f"Stopping image generation at step {t + 1}/{len(time_steps)}"
                ) from None

            if self._cancelling:
                break

        # Drain pending ring recvs after cancellation during async steps.
        # The last stage sent patches during the final completed step, but
        # the first stage will never enter the next step to recv them.
        if (
            self._cancelling
            and self.is_first_stage
            and not self.is_last_stage
            and self.group is not None
            and t >= runtime_config.init_time_step + num_sync_steps
            and t != runtime_config.num_inference_steps - 1
        ):
            patch_latents_drain, _ = self._create_patches(latents, runtime_config)

View on GitHub (pinned to 21a54c5ea0)

When it happens

Trigger: Thrown at src/exo/worker/engines/image/pipeline/runner.py:591 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of exo-explore/exo@21a54c5ea0 (2026-08-26). Data as JSON: /api/errors/1a925ca93ed013cd. Report an issue: GitHub.