{"record":{"id":"3a4afd9cdfdcd723","repo":"Panniantong/Agent-Reach","slug":"all-providers-failed-for-chunk-name-last-err","errorCode":null,"errorMessage":"all providers failed for {chunk.name}: {last_err}","messagePattern":"all providers failed for (.+?): (.+?)","errorType":"exception","errorClass":"TranscribeError","httpStatus":null,"severity":"error","filePath":"agent_reach/transcribe.py","lineNumber":499,"sourceCode":"    for chunk in chunks:\n        text = _transcribe_with_fallback(chunk, order, cfg)\n        pieces.append(text.strip())\n    return \"\\n\".join(p for p in pieces if p)\n\n\ndef _transcribe_with_fallback(chunk: Path, order: List[str], config: Config) -> str:\n    \"\"\"Try each provider in order; return first success or raise the last error.\"\"\"\n    last_err: Optional[Exception] = None\n    for p in order:\n        if not _provider_key(p, config):\n            # Skip silently — caller already validated at least one is configured.\n            continue\n        try:\n            return transcribe_chunk(chunk, p, config=config)\n        except TranscribeError as e:\n            last_err = e\n            continue\n    raise TranscribeError(f\"all providers failed for {chunk.name}: {last_err}\")\n","sourceCodeStart":481,"sourceCodeEnd":500,"githubUrl":"https://github.com/Panniantong/Agent-Reach/blob/93ae1d18c37b707dec053c7c4f9d91cd8ef8943d/agent_reach/transcribe.py#L481-L500","documentation":"Raised by _transcribe_with_fallback when every configured provider in the rotation failed for a given chunk; the message embeds the last (most informative) underlying error. It means keys existed and requests were attempted, but each TranscribeError (HTTP failure, auth rejection, network error surfaced as TranscribeError) aborted the chain. The whole transcribe() call aborts — no partial transcript is returned.","triggerScenarios":"transcribe() with provider='auto' and allow_provider_fallback=True where both the Groq and OpenAI upload fail (invalid/expired key → 401, rate limit → 429, oversized multipart, network timeout). Also with a single configured provider: one failure immediately becomes 'all providers failed'.","commonSituations":"Expired or revoked API key; hitting Groq rate limits on whisper-large-v3; flaky egress network; provider outage; key configured for the wrong environment (test key against prod endpoint).","solutions":["Read the embedded {last_err} in the message — it is the actual provider error and dictates the fix (401 → new key, 429 → back off, timeout → network)","Run `python -m agent_reach.cli doctor` to verify key validity and connectivity","Configure both groq_api_key and openai_api_key with allow_provider_fallback=True so one provider's outage does not kill the job","Retry with backoff for transient 429/5xx failures"],"exampleFix":"# before\ntext = transcribe(url)  # all providers failed for chunk-00.mp3: 401 Unauthorized\n\n# after — rotate key + opt into fallback\nfrom agent_reach.transcribe import transcribe, TranscribeError\ntry:\n    text = transcribe(url, provider=\"auto\", allow_provider_fallback=True)\nexcept TranscribeError as e:\n    if \"401\" in str(e):\n        refresh_keys()  # then retry once\n    raise","handlingStrategy":"retry","validationCode":"# Validate keys resolve and endpoints are reachable before the long pipeline\nfrom agent_reach.transcribe import transcribe_chunk\nfrom agent_reach.config import Config\nimport tempfile, pathlib\n\ndef probe_provider(provider: str) -> bool:\n    with tempfile.TemporaryDirectory() as d:\n        tiny = pathlib.Path(d) / \"probe.wav\"\n        tiny.write_bytes(_ONE_SECOND_SILENCE_WAV)  # pre-made fixture\n        try:\n            transcribe_chunk(tiny, provider, config=Config())\n            return True\n        except Exception:\n            return False","typeGuard":null,"tryCatchPattern":"from agent_reach.transcribe import transcribe, TranscribeError\nimport time\nfor attempt in range(3):\n    try:\n        text = transcribe(url, provider=\"auto\", allow_provider_fallback=True)\n        break\n    except TranscribeError as e:\n        msg = str(e)\n        if \"401\" in msg or \"Unauthorized\" in msg:\n            raise  # auth: retrying is useless, fix the key\n        if attempt == 2:\n            raise\n        time.sleep(2 ** attempt)  # 429/5xx/network: back off and retry","preventionTips":["Configure both groq_api_key and openai_api_key and enable allow_provider_fallback=True","Always inspect the embedded last error — it, not the wrapper message, defines the fix","Distinguish auth errors (no retry) from rate/network errors (retry with backoff)"],"tags":["transcription","api","fallback","auth","retry"],"backgroundTag":null,"analyzedSha":"93ae1d18c37b707dec053c7c4f9d91cd8ef8943d","analyzedAt":"2026-08-14T22:54:06.735Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}