{
  "id": "go/grpc-unimplemented-method",
  "signature": "rpc error: code = Unimplemented desc = unknown method SayHello",
  "signature_zh": "rpc 错误：代码 = Unimplemented 描述 = 未知方法 SayHello",
  "regex": "rpc\\ error:\\ code\\ =\\ Unimplemented\\ desc\\ =\\ unknown\\ method\\ SayHello",
  "domain": "go",
  "category": "module_error",
  "subcategory": null,
  "root_cause": "The server does not implement the requested RPC method, possibly due to outdated proto generation.",
  "root_cause_type": "generic",
  "root_cause_zh": "服务器未实现请求的 RPC 方法，可能是由于 proto 生成过时。",
  "versions": [
    {
      "version": "1.56.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.57.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Trying other methods that also don't exist.",
      "why_fails": "All methods may be unimplemented.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "Using nil response from failed call.",
      "why_fails": "Nil pointer dereference.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "Assuming the method was removed.",
      "why_fails": "May still be needed.",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.95,
      "how": "protoc --go_out=. --go-grpc_out=. *.proto; go build -o server server.go",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.9,
      "how": "if err := pb.RegisterGreeterServer(s, &server{}); err != nil { log.Fatal(err) }",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "Ensure method name matches exactly: client.SayHello(ctx, req)",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2025-02-14",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}