openai/codex · error · anyhow::Error

incremental inference request {inference_call_id} referenced

Error message

incremental inference request {inference_call_id} referenced unknown previous_response_id {previous_response_id}

What it means

Error "incremental inference request {inference_call_id} referenced unknown previous_response_id {previous_response_id}" thrown in openai/codex.

Source

Thrown at codex-rs/rollout-trace/src/reducer/conversation.rs:88

            // Streaming follow-up requests can send only the new input plus a
            // `previous_response_id`. The trace model still exposes the full
            // model-visible input, so rebuild the omitted prefix from the
            // previous request and response before reducing this delta.
            let previous_items = self
                .rollout
                .inference_calls
                .values()
                .find(|inference| {
                    inference.thread_id == thread_id
                        && inference.response_id.as_deref() == Some(previous_response_id)
                })
                .map(|inference| {
                    let mut ids = inference.request_item_ids.clone();
                    ids.extend(inference.response_item_ids.clone());
                    ids
                });
            let Some(mut item_ids) = previous_items else {
                bail!(
                    "incremental inference request {inference_call_id} referenced unknown previous_response_id {previous_response_id}"
                );
            };
            let delta_item_ids = self.reconcile_conversation_items(
                items,
                ReconcileItems {
                    thread_id,
                    codex_turn_id,
                    wall_time_unix_ms,
                    produced_by: Vec::new(),
                    start_index: item_ids.len(),
                    mode: ReconcileMode::AppendOnly,
                    snapshot_override: None,
                },
            )?;
            item_ids.extend(delta_item_ids);
            item_ids
        } else {

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/rollout-trace/src/reducer/conversation.rs:88 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/70b2c5d479350317. Report an issue: GitHub.