{
  "id": "go/grpc-protobuf-version-mismatch",
  "signature": "panic: proto: file \"service.proto\" is already registered",
  "signature_zh": "panic：proto：文件 \"service.proto\" 已注册",
  "regex": "panic:\\ proto:\\ file\\ \"service\\.proto\"\\ is\\ already\\ registered",
  "domain": "go",
  "category": "build_error",
  "subcategory": null,
  "root_cause": "The same .proto file is compiled into multiple packages, causing double registration at init time.",
  "root_cause_type": "generic",
  "root_cause_zh": "同一个 .proto 文件被编译进多个包，导致 init 时重复注册。",
  "versions": [
    {
      "version": "1.4",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Regeneration will still produce the same conflict if imports are duplicated.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Renaming the package doesn't resolve the file registration conflict.",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.9,
      "how": "Check go.mod for duplicate dependencies and use replace directives to unify versions.",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.5,
      "how": "proto.RegisterFile(\"custom_service.proto\", fileDescriptor)",
      "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": 0.9,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-04-12",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}