{
  "id": "python/flask-url-for-build-error",
  "signature": "werkzeug.routing.exceptions.BuildError: Could not build url for endpoint 'user_profile' with values ['user_id']. Did you mean 'index' instead?",
  "signature_zh": "Werkzeug 路由异常：无法为端点 'user_profile' 构建 URL，参数 ['user_id']。是否指 'index'？",
  "regex": "werkzeug\\.routing\\.exceptions\\.BuildError:\\ Could\\ not\\ build\\ url\\ for\\ endpoint\\ 'user_profile'\\ with\\ values\\ \\['user_id'\\]\\.\\ Did\\ you\\ mean\\ 'index'\\ instead\\?",
  "domain": "python",
  "category": "runtime_error",
  "subcategory": null,
  "root_cause": "URL 构建时端点不存在或参数不匹配路由规则。",
  "root_cause_type": "generic",
  "root_cause_zh": "URL 构建时端点不存在或参数不匹配路由规则。",
  "versions": [
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "不一致导致其他部分仍然报错。",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "如果路由需要参数，则无法正确生成。",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "失去 Flask 的动态 URL 优势，且维护困难。",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.95,
      "how": "检查端点名称是否与 @app.route 中的 endpoint 参数一致，或使用默认函数名",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.9,
      "how": "确保传递所有必需参数，如 url_for('user_profile', user_id=123)",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "使用 app.url_map 查看已注册端点",
      "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": 0.89,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-12-05",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}