exo-explore/exo · error · HTTPException

Trace not found: {task_id}

Error message

Trace not found: {task_id}

What it means

Error "Trace not found: {task_id}" thrown in exo-explore/exo.

Source

Thrown at src/exo/api/main.py:2120

            stat = trace_file.stat()
            created_at = datetime.fromtimestamp(
                stat.st_mtime, tz=timezone.utc
            ).isoformat()
            traces.append(
                TraceListItem(
                    task_id=task_id,
                    created_at=created_at,
                    file_size=stat.st_size,
                )
            )

        return TraceListResponse(traces=traces)

    async def get_trace(self, task_id: str) -> TraceResponse:
        trace_path = self._get_trace_path(task_id)

        if not trace_path.exists():
            raise HTTPException(status_code=404, detail=f"Trace not found: {task_id}")

        trace_events = load_trace_file(trace_path)

        return TraceResponse(
            task_id=task_id,
            traces=[
                TraceEventResponse(
                    name=event.name,
                    start_us=event.start_us,
                    duration_us=event.duration_us,
                    rank=event.rank,
                    category=event.category,
                )
                for event in trace_events
            ],
        )

    async def get_trace_stats(self, task_id: str) -> TraceStatsResponse:

View on GitHub (pinned to 21a54c5ea0)

When it happens

Trigger: Thrown at src/exo/api/main.py:2120 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/d33754f9b1048720. Report an issue: GitHub.