{
  "id": "go/proxy-connectivity-timeout",
  "signature": "go: example.com/module@v1.0.0: reading https://proxy.golang.org/example.com/module/@v/v1.0.0.mod: dial tcp: lookup proxy.golang.org: i/o timeout",
  "signature_zh": "go: example.com/module@v1.0.0：读取 https://proxy.golang.org/example.com/module/@v/v1.0.0.mod：拨号 tcp：查找 proxy.golang.org：I/O 超时",
  "regex": "go:\\ example\\.com/module@v1\\.0\\.0:\\ reading\\ https://proxy\\.golang\\.org/example\\.com/module/@v/v1\\.0\\.0\\.mod:\\ dial\\ tcp:\\ lookup\\ proxy\\.golang\\.org:\\ i/o\\ timeout",
  "domain": "go",
  "category": "network_error",
  "subcategory": null,
  "root_cause": "Network connectivity to the Go module proxy is unavailable, often due to firewall restrictions, DNS issues, or proxy being down.",
  "root_cause_type": "generic",
  "root_cause_zh": "无法连接到 Go 模块代理网络，通常是由于防火墙限制、DNS 问题或代理宕机。",
  "versions": [
    {
      "version": "1.11",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.12",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.13",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.14",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.15",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.16",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.17",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.18",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.19",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.20",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.21",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.22",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.23",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Retrying the same command repeatedly",
      "why_fails": "Network timeout is likely persistent; retrying without fixing connectivity will continue to fail.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "Setting GOPROXY=https://proxy.golang.org,direct",
      "why_fails": "This is the default; if the proxy is unreachable, it will still timeout before falling back to direct.",
      "fail_rate": 0.5,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Set GOPROXY=off to bypass proxy and fetch directly from VCS",
      "success_rate": 0.7,
      "how": "export GOPROXY=off && go mod download",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use a different proxy or direct connection",
      "success_rate": 0.8,
      "how": "export GOPROXY=https://goproxy.io,direct && go mod download",
      "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": 0.87,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-12-10",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}