{
  "id": "cmake/cuda-architecture-unknown",
  "signature": "CMake Error: CUDA_ARCHITECTURES is empty for target \"mytarget\"",
  "signature_zh": "CMake错误：目标\"mytarget\"的CUDA_ARCHITECTURES为空",
  "regex": "CMake Error: CUDA_ARCHITECTURES is empty for target .*",
  "domain": "cmake",
  "category": "config_error",
  "subcategory": null,
  "root_cause": "CMake 3.18+ requires explicit CUDA architectures; when CMAKE_CUDA_ARCHITECTURES is not set or set to empty, compilation fails.",
  "root_cause_type": "generic",
  "root_cause_zh": "CMake 3.18及以上版本要求显式指定CUDA架构；当CMAKE_CUDA_ARCHITECTURES未设置或设置为空时，编译失败。",
  "versions": [
    {
      "version": "CMake 3.18",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.19",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.20",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.21",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.22",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.23",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.24",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.25",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.26",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.27",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.28",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.29",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CMake 3.30",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CUDA 11.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CUDA 11.8",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "CUDA 12.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Setting CMAKE_CUDA_ARCHITECTURES to empty string in CMakeLists.txt",
      "why_fails": "CMake interprets empty string as no architectures specified, triggering the same error.",
      "fail_rate": 0.95,
      "condition": "",
      "sources": []
    },
    {
      "action": "Removing all CUDA-related lines from CMakeLists.txt",
      "why_fails": "Without any architecture, CMake defaults to empty, causing the error.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "Setting CMAKE_CUDA_ARCHITECTURES to 'all' on older CUDA versions",
      "why_fails": "'all' may include unsupported architectures, leading to compilation failures.",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Set CMAKE_CUDA_ARCHITECTURES globally before project() call: set(CMAKE_CUDA_ARCHITECTURES \"75;80\")",
      "success_rate": 0.9,
      "how": "Set CMAKE_CUDA_ARCHITECTURES globally before project() call: set(CMAKE_CUDA_ARCHITECTURES \"75;80\")",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use target property: set_property(TARGET mytarget PROPERTY CUDA_ARCHITECTURES \"75;80\")",
      "success_rate": 0.85,
      "how": "Use target property: set_property(TARGET mytarget PROPERTY CUDA_ARCHITECTURES \"75;80\")",
      "condition": "",
      "sources": []
    },
    {
      "action": "Set environment variable: export CMAKE_CUDA_ARCHITECTURES=75;80 before running cmake",
      "success_rate": 0.75,
      "how": "Set environment variable: export CMAKE_CUDA_ARCHITECTURES=75;80 before running cmake",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Set CMAKE_CUDA_ARCHITECTURES globally before project() call: set(CMAKE_CUDA_ARCHITECTURES \"75;80\")",
    "Use target property: set_property(TARGET mytarget PROPERTY CUDA_ARCHITECTURES \"75;80\")",
    "Set environment variable: export CMAKE_CUDA_ARCHITECTURES=75;80 before running cmake"
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://cmake.org/cmake/help/latest/policy/CMP0104.html",
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2023-03-15",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}