{
  "id": "unity/urp-renderer-missing",
  "signature": "NullReferenceException: UniversalRenderPipeline.asset is missing or not assigned in Graphics Settings",
  "signature_zh": "NullReferenceException: UniversalRenderPipeline.asset缺失或未在图形设置中分配",
  "regex": "NullReferenceException: UniversalRenderPipeline\\.asset is missing or not assigned",
  "domain": "unity",
  "category": "config_error",
  "subcategory": null,
  "root_cause": "The URP Render Pipeline Asset is not assigned in Project Settings > Graphics, or the asset has been deleted or corrupted.",
  "root_cause_type": "generic",
  "root_cause_zh": "在项目设置 > 图形中未分配URP渲染管线资源，或者该资源已被删除或损坏。",
  "versions": [
    {
      "version": "Unity 2022.3",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "Unity 2023.2",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "URP 14.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "URP 16.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Reimporting all assets does not assign the missing pipeline asset; the Graphics Settings need manual update.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Reinstalling URP package without assigning the asset in settings leaves the error unresolved.",
      "fail_rate": 0.5,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Go to Project Settings > Graphics, and under 'Scriptable Render Pipeline Settings', assign the UniversalRenderPipelineAsset (e.g., from Assets/Settings/URP-HighQuality.asset). If missing, create a new one via Assets > Create > Rendering > URP Asset (with Universal Renderer).",
      "success_rate": 0.95,
      "how": "Go to Project Settings > Graphics, and under 'Scriptable Render Pipeline Settings', assign the UniversalRenderPipelineAsset (e.g., from Assets/Settings/URP-HighQuality.asset). If missing, create a new one via Assets > Create > Rendering > URP Asset (with Universal Renderer).",
      "condition": "",
      "sources": []
    },
    {
      "action": "If the asset file is deleted, recreate it: Right-click in Project window, select Create > Rendering > URP Asset (with Universal Renderer), name it, then assign in Graphics Settings.",
      "success_rate": 0.9,
      "how": "If the asset file is deleted, recreate it: Right-click in Project window, select Create > Rendering > URP Asset (with Universal Renderer), name it, then assign in Graphics Settings.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Go to Project Settings > Graphics, and under 'Scriptable Render Pipeline Settings', assign the UniversalRenderPipelineAsset (e.g., from Assets/Settings/URP-HighQuality.asset). If missing, create a new one via Assets > Create > Rendering > URP Asset (with Universal Renderer).",
    "If the asset file is deleted, recreate it: Right-click in Project window, select Create > Rendering > URP Asset (with Universal Renderer), name it, then assign in Graphics Settings."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@14.0/manual/InstallURPIntoAProject.html",
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.9,
  "fix_success_rate": 0.95,
  "resolvable": "true",
  "first_seen": "2023-09-01",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}