{
  "id": "python/pip-vcs-url-authentication-failed",
  "signature": "ERROR: Command errored out with exit status 128: git clone --filter=blob:none --quiet https://github.com/user/private-repo.git ... (fatal: Authentication failed for 'https://github.com/user/private-repo.git/')",
  "signature_zh": "错误：命令以退出状态128出错：git clone ...（致命：身份验证失败）",
  "regex": "ERROR:\\ Command\\ errored\\ out\\ with\\ exit\\ status\\ 128:\\ git\\ clone\\ \\-\\-filter=blob:none\\ \\-\\-quiet\\ https://github\\.com/user/private\\-repo\\.git\\ \\.\\.\\.\\ \\(fatal:\\ Authentication\\ failed\\ for\\ 'https://github\\.com/user/private\\-repo\\.git/'\\)",
  "domain": "python",
  "category": "auth_error",
  "subcategory": null,
  "root_cause": "Pip cannot authenticate to a private VCS repository; missing credentials or SSH keys.",
  "root_cause_type": "generic",
  "root_cause_zh": "pip无法验证到私有VCS仓库；缺少凭据或SSH密钥。",
  "versions": [
    {
      "version": "3.10",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Using --no-cache-dir",
      "why_fails": "Cache is not the issue; authentication is required.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "Removing the package from requirements",
      "why_fails": "Package is needed; removal breaks functionality.",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Use SSH URL with SSH keys configured",
      "success_rate": 0.9,
      "how": "pip install git+ssh://git@github.com/user/private-repo.git",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use personal access token in URL",
      "success_rate": 0.85,
      "how": "pip install git+https://<token>@github.com/user/private-repo.git",
      "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": "2025-05-20",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}