{"record":{"id":"e4bb15e44479a0df","repo":"Fosowl/agenticSeek","slug":"lm-studio-returned-empty-response","errorCode":null,"errorMessage":"LM Studio returned empty response","messagePattern":"LM Studio returned empty response","errorType":"exception","errorClass":"Exception","httpStatus":null,"severity":"error","filePath":"sources/llm_provider.py","lineNumber":389,"sourceCode":"            # Normalize the address to ensure it has a scheme prefix\n            addr = self.server_ip\n            if \"://\" not in addr:\n                addr = f\"http://{addr}\"\n            url = addr\n        route_start = f\"{url}/v1/chat/completions\"\n        payload = {\n            \"messages\": history,\n            \"temperature\": 0.7,\n            \"max_tokens\": 4096,\n            \"model\": self.model\n        }\n\n        try:\n            response = requests.post(route_start, json=payload, timeout=30)\n            if response.status_code != 200:\n                raise Exception(f\"LM Studio returned status {response.status_code}: {response.text}\")\n            if not response.text.strip():\n                raise Exception(\"LM Studio returned empty response\")\n            try:\n                result = response.json()\n            except ValueError as json_err:\n                raise Exception(f\"Invalid JSON from LM Studio: {response.text[:200]}\") from json_err\n\n            if verbose:\n                print(\"Response from LM Studio:\", result)\n            choices = result.get(\"choices\", [])\n            if not choices:\n                raise Exception(f\"No choices in LM Studio response: {result}\")\n\n            message = choices[0].get(\"message\", {})\n            content = message.get(\"content\", \"\")\n            if not content:\n                raise Exception(f\"Empty content in LM Studio response: {result}\")\n            return content\n\n        except requests.exceptions.Timeout:","sourceCodeStart":371,"sourceCodeEnd":407,"githubUrl":"https://github.com/Fosowl/agenticSeek/blob/ae57a2357745a9706cb12d0fd76d954c84d166fa/sources/llm_provider.py#L371-L407","documentation":"After a 200 response, lm_studio_fn checks response.text.strip() and raises this if the body is completely empty. A 200 with no body from LM Studio is treated as a failure since no choices/content can be extracted.","triggerScenarios":"LM Studio returns HTTP 200 but an empty body — typically a server-side generation glitch, a proxy stripping the body, or an interrupted response on the local server.","commonSituations":"LM Studio crashed mid-request while still returning 200; intermediate proxy/antivirus tooling emptying the response; extremely low max_tokens or resource exhaustion (OOM) killing generation.","solutions":["Retry the request — a single empty 200 is often transient","Check LM Studio server logs for OOM or generation crash at that timestamp","Reduce context/max_tokens or load a smaller quant so the model fits in VRAM/RAM","Remove any local proxy between the client and LM Studio and retry","Update LM Studio to the latest version; older builds had empty-response bugs"],"exampleFix":"// before\ncontent = provider.lm_studio_fn(history)\n// after\nfor attempt in range(3):\n    try:\n        content = provider.lm_studio_fn(history)\n        break\n    except Exception as e:\n        if \"empty response\" in str(e) and attempt < 2:\n            time.sleep(2)\n            continue\n        raise","handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":"for attempt in range(3):\n    try:\n        content = provider.lm_studio_fn(history)\n        break\n    except Exception as e:\n        if \"empty response\" in str(e) and attempt < 2:\n            time.sleep(1 + attempt)\n            continue\n        raise","preventionTips":["Retry idempotent generation calls — empty 200s are usually transient","Watch LM Studio logs for OOM/crashes that produce empty bodies","Load a quant that fits your VRAM/RAM","Remove intermediaries (proxies) between client and server"],"tags":["lm-studio","empty-response","local-server"],"backgroundTag":"empty-response-body","analyzedSha":"ae57a2357745a9706cb12d0fd76d954c84d166fa","analyzedAt":"2026-08-30T02:49:05.834Z","schemaVersion":2},"datasetVersion":"2026-08-30T03:17:51.788Z"}