clangd cannot find ue5 header files

I used UE5 to generate a C++ class and opened it with VSC. Clangd prompted that it could not find “coreminimal.h”, but the project could be generated normally.

ue seems to automatically generate a c_cpp_properties.json file and two compile_commands files, which are as follows:
c_cpp_properties.json:

{
"configurations": [
    {
        "name": "obstacleassaultEditor Editor Win64 Development (obstacleassault)",
        "compilerPath": "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "cStandard": "c17",
        "cppStandard": "c++20",
        "intelliSenseMode": "msvc-x64",
        "compileCommands": "E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_obstacleassault.json"
    },
    {
        "name": "Win32",
        "compilerPath": "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "cStandard": "c17",
        "cppStandard": "c++20",
        "intelliSenseMode": "msvc-x64",
        "compileCommands": "E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_Default.json"
    }
],
"version": 4

}

compileCommands_Default.json:

[
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\MovingPlatform.cpp",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_Default\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\MovingPlatform.h",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_Default\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\obstacleassault.Build.cs",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_Default\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\obstacleassault.cpp",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_Default\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\obstacleassault.h",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_Default\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
}

]

compileCommands_obstacleassault.json:

[
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\MovingPlatform.cpp",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_obstacleassault\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\MovingPlatform.h",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_obstacleassault\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\obstacleassault.Build.cs",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_obstacleassault\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\obstacleassault.cpp",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_obstacleassault\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
},
{
    "file": "E:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\obstacleassault.h",
    "arguments": [
        "D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe",
        "@E:\unreal\project\obstacleassault\obstacleaasault\.vscode\compileCommands_obstacleassault\obstacleassault.1.rsp"
    ],
    "directory": "E:\epic\UE_5.4\Engine\Source"
}

]

the rsp file specified in the json file contains the parent folder path of that header file

and the output of clangd was:

I[17:08:47.937] clangd version 18.1.3 (https://github.com/llvm/llvm-project c13b7485b87909fcf739f62cfa382b55407433c0)
I[17:08:47.938] Features: windows+grpc
I[17:08:47.938] PID: 43328
I[17:08:47.938] Working directory: e:unrealprojectobstacleassaultobstacleaasault
I[17:08:47.938] argv[0]: D:programclangd-windows-18.1.3_7clangd_18.1.3binclangd.exe
I[17:08:47.942] Starting LSP over stdin/stdout
I[17:08:47.942] <-- initialize(0)
I[17:08:47.952] --> reply:initialize(0) 9 ms
I[17:08:47.999] <-- initialized
I[17:08:48.001] <-- textDocument/didOpen
I[17:08:48.003] Failed to find compilation database for e:unrealprojectobstacleassaultobstacleaasaultSourceobstacleassaultMovingPlatform.h
I[17:08:48.003] ASTWorker building file e:unrealprojectobstacleassaultobstacleaasaultSourceobstacleassaultMovingPlatform.h version 1 with command clangd fallback
[e:unrealprojectobstacleassaultobstacleaasaultSourceobstacleassault]
"D:\program\mingw64\bin\clang" -xobjective-c++-header "-resource-dir=D:\program\clangd-windows-18.1.3_7\clangd_18.1.3\lib\clang\18" -- "e:\unreal\project\obstacleassault\obstacleaasault\Source\obstacleassault\MovingPlatform.h"
I[17:08:48.012] --> textDocument/clangd.fileStatus
I[17:08:48.024] Built preamble of size 239300 for file e:unrealprojectobstacleassaultobstacleaasaultSourceobstacleassaultMovingPlatform.h version 1 in 0.01 seconds
I[17:08:48.025] --> workspace/semanticTokens/refresh(0)
I[17:08:48.025] --> textDocument/clangd.fileStatus
I[17:08:48.026] <-- reply(0)
I[17:08:48.027] Indexing c++14 standard library in the context of e:unrealprojectobstacleassaultobstacleaasaultSourceobstacleassaultMovingPlatform.h
I[17:08:48.043] --> textDocument/publishDiagnostics
I[17:08:48.043] --> textDocument/inactiveRegions
I[17:08:48.043] --> textDocument/clangd.fileStatus
I[17:08:48.078] <-- textDocument/documentLink(1)
I[17:08:48.079] --> reply:textDocument/documentLink(1) 0 ms
I[17:08:48.079] --> textDocument/clangd.fileStatus
I[17:08:48.088] <-- textDocument/inlayHint(2)
I[17:08:48.088] --> reply:textDocument/inlayHint(2) 0 ms
I[17:08:48.088] --> textDocument/clangd.fileStatus
I[17:08:48.089] <-- textDocument/semanticTokens/full(3)
I[17:08:48.090] --> reply:textDocument/semanticTokens/full(3) 0 ms
I[17:08:48.090] --> textDocument/clangd.fileStatus
I[17:08:48.453] <-- $/setTrace
I[17:08:48.453] unhandled notification $/setTrace
I[17:08:48.579] <-- $/setTrace
I[17:08:48.579] unhandled notification $/setTrace
I[17:08:48.684] <-- $/setTrace
I[17:08:48.684] unhandled notification $/setTrace
I[17:08:48.688] <-- textDocument/documentLink(4)
I[17:08:48.688] --> reply:textDocument/documentLink(4) 0 ms
I[17:08:48.688] --> textDocument/clangd.fileStatus
I[17:08:48.694] <-- $/setTrace
I[17:08:48.694] unhandled notification $/setTrace
I[17:08:49.056] <-- $/setTrace
I[17:08:49.056] unhandled notification $/setTrace
I[17:08:49.064] <-- textDocument/foldingRange(5)
I[17:08:49.065] --> reply:textDocument/foldingRange(5) 0 ms
I[17:08:49.065] <-- textDocument/documentSymbol(6)
I[17:08:49.066] --> reply:textDocument/documentSymbol(6) 0 ms
I[17:08:49.066] --> textDocument/clangd.fileStatus
I[17:08:49.094] <-- textDocument/inlayHint(7)
I[17:08:49.094] --> reply:textDocument/inlayHint(7) 0 ms
I[17:08:49.094] --> textDocument/clangd.fileStatus
I[17:08:49.107] <-- $/cancelRequest
I[17:08:49.196] <-- $/cancelRequest
I[17:08:49.223] <-- textDocument/foldingRange(8)
I[17:08:49.223] --> reply:textDocument/foldingRange(8) 0 ms
I[17:08:49.230] <-- textDocument/documentSymbol(9)
I[17:08:49.230] --> reply:textDocument/documentSymbol(9) 0 ms
I[17:08:49.230] --> textDocument/clangd.fileStatus
I[17:08:49.233] <-- textDocument/semanticTokens/full/delta(10)
I[17:08:49.233] --> reply:textDocument/semanticTokens/full/delta(10) 0 ms
I[17:08:49.233] --> textDocument/clangd.fileStatus
I[17:08:49.233] <-- $/cancelRequest
I[17:08:49.234] <-- textDocument/documentLink(11)
I[17:08:49.234] --> reply:textDocument/documentLink(11) 0 ms
I[17:08:49.234] --> textDocument/clangd.fileStatus
I[17:08:49.235] <-- $/cancelRequest
I[17:08:49.256] Indexed c++14 standard library (incomplete due to errors): 12180 symbols, 1150 filtered
I[17:08:49.272] <-- textDocument/foldingRange(12)
I[17:08:49.273] --> reply:textDocument/foldingRange(12) 0 ms
I[17:08:49.557] <-- textDocument/documentSymbol(13)
I[17:08:49.557] --> reply:textDocument/documentSymbol(13) 0 ms
I[17:08:49.557] --> textDocument/clangd.fileStatus
I[17:08:50.107] <-- textDocument/documentSymbol(14)
I[17:08:50.107] --> reply:textDocument/documentSymbol(14) 0 ms
I[17:08:50.107] --> textDocument/clangd.fileStatus
I[17:08:50.254] <-- $/setTrace
I[17:08:50.254] unhandled notification $/setTrace
I[17:08:51.100] <-- textDocument/inlayHint(15)
I[17:08:51.100] --> reply:textDocument/inlayHint(15) 0 ms
I[17:08:51.100] --> textDocument/clangd.fileStatus
I[17:08:51.318] <-- textDocument/foldingRange(16)
I[17:08:51.318] --> reply:textDocument/foldingRange(16) 0 ms
I[17:08:51.393] <-- textDocument/documentSymbol(17)
I[17:08:51.393] --> reply:textDocument/documentSymbol(17) 0 ms
I[17:08:51.393] --> textDocument/clangd.fileStatus
I[17:08:52.102] <-- textDocument/definition(18)
I[17:08:52.102] --> reply:textDocument/definition(18) 0 ms
I[17:08:52.102] --> textDocument/clangd.fileStatus
I[17:08:52.127] <-- textDocument/definition(19)
I[17:08:52.127] --> reply:textDocument/definition(19) 0 ms
I[17:08:52.127] --> textDocument/clangd.fileStatus

I created compile_commands.json in the Source folder and copied the contents of compileCommands_obstacle.json into it:

This solved the problem of the header files not being found but caused other problems:

outlog of clangd:

I[20:00:22.539] clangd version 18.1.3 (https://github.com/llvm/llvm-project c13b7485b87909fcf739f62cfa382b55407433c0)
I[20:00:22.540] Features: windows+grpc
I[20:00:22.540] PID: 29612
I[20:00:22.540] Working directory: e:unrealprojectobstacle
I[20:00:22.540] argv[0]: D:programclangd-windows-18.1.3_7clangd_18.1.3binclangd.exe
I[20:00:22.546] Starting LSP over stdin/stdout
I[20:00:22.546] <-- initialize(0)
I[20:00:22.556] --> reply:initialize(0) 9 ms
I[20:00:22.557] <-- initialized
I[20:00:22.559] <-- textDocument/didOpen
I[20:00:22.561] Loaded compilation database from e:unrealprojectobstacleSourcecompile_commands.json
I[20:00:22.561] --> window/workDoneProgress/create(0)
I[20:00:22.561] Enqueueing 5 commands for indexing
I[20:00:22.562] <-- reply(0)
I[20:00:22.562] --> $/progress
I[20:00:22.562] --> $/progress
I[20:00:22.562] ASTWorker building file e:unrealprojectobstacleSourceobstacleMovingPlatform.h version 1 with command 
[E:epicUE_5.4EngineSource]
"D:\program\vs\2022community\VC\Tools\MSVC\14.40.33807\bin\Hostx64\x64\cl.exe" --driver-mode=cl 
/FI "E:\unreal\project\obstacle\Intermediate\Build\Win64\x64\UnrealEditor\Development\obstacle\Definitions.obstacle.h" 
/FI "E:\unreal\project\obstacle\Intermediate\Build\Win64\x64\obstacleEditor\Development\UnrealEd\SharedPCH.UnrealEd.Project.ValApi.Cpp20.InclOrderOldest.h" 
/I "E:\epic\UE_5.4\Engine\Source" 
/I "E:\epic\UE_5.4\Engine\Intermediate\Build\Win64\UnrealEditor\Inc\Engine\UHT"
...........
/I "E:\epic\UE_5.4\Engine\Source\ThirdParty\LibTiff\Source\Win64" 
/I "E:\epic\UE_5.4\Engine\Source\ThirdParty\LibTiff\Source" "-resource-dir=D:\program\clangd-windows-18.1.3_7\clangd_18.1.3\lib\clang\18" -- "e:\unreal\project\obstacle\Source\obstacle\MovingPlatform.h"
I[20:00:22.571] --> textDocument/clangd.fileStatus
I[20:00:22.666] <-- textDocument/documentLink(1)
I[20:00:22.667] <-- textDocument/inlayHint(2)
I[20:00:22.692] <-- $/setTrace
I[20:00:22.692] unhandled notification $/setTrace
I[20:00:22.695] <-- $/setTrace
I[20:00:22.695] unhandled notification $/setTrace
I[20:00:23.087] <-- textDocument/foldingRange(3)
I[20:00:23.128] --> reply:textDocument/foldingRange(3) 41 ms
I[20:00:23.157] <-- textDocument/codeAction(4)
I[20:00:23.158] --> $/progress
I[20:00:23.158] --> $/progress
I[20:00:23.158] --> $/progress
E[20:00:23.182] Indexing E:unrealprojectobstacleSourceobstacleobstacle.Build.cs failed: Couldn't build compiler invocation
I[20:00:23.182] --> $/progress
I[20:00:23.184] <-- $/setTrace
I[20:00:23.184] unhandled notification $/setTrace
I[20:00:23.236] <-- $/setTrace
I[20:00:23.236] unhandled notification $/setTrace
I[20:00:23.277] <-- $/cancelRequest
I[20:00:23.281] <-- textDocument/codeAction(5)
I[20:00:23.368] <-- $/cancelRequest
I[20:00:23.428] <-- textDocument/codeAction(6)
I[20:00:23.457] <-- $/setTrace
I[20:00:23.457] unhandled notification $/setTrace
I[20:00:23.460] <-- $/setTrace
I[20:00:23.460] unhandled notification $/setTrace
I[20:00:23.461] <-- $/cancelRequest
I[20:00:23.461] <-- textDocument/documentLink(7)
I[20:00:23.462] <-- $/cancelRequest
I[20:00:23.462] <-- textDocument/codeAction(8)
I[20:00:23.463] <-- $/cancelRequest
I[20:00:23.464] <-- $/cancelRequest
I[20:00:23.464] <-- textDocument/documentLink(9)
I[20:00:23.464] <-- $/setTrace
I[20:00:23.464] unhandled notification $/setTrace
I[20:00:23.465] <-- textDocument/semanticTokens/full(10)
I[20:00:23.465] <-- textDocument/foldingRange(11)
I[20:00:23.465] --> reply:textDocument/foldingRange(11) 0 ms
I[20:00:23.466] <-- textDocument/documentSymbol(12)
I[20:00:24.749] <-- $/cancelRequest
I[20:00:24.786] <-- textDocument/codeAction(13)
I[20:00:24.786] <-- textDocument/documentSymbol(14)
I[20:00:24.840] <-- $/cancelRequest
I[20:00:24.841] <-- textDocument/codeAction(15)
I[20:00:24.841] <-- $/setTrace
I[20:00:24.841] unhandled notification $/setTrace
I[20:00:24.880] Built preamble of size 16125004 for file e:unrealprojectobstacleSourceobstacleMovingPlatform.h version 1 in 2.31 seconds
I[20:00:24.883] Indexing c17 standard library in the context of e:unrealprojectobstacleSourceobstacleMovingPlatform.h
I[20:00:24.884] --> workspace/semanticTokens/refresh(1)
I[20:00:24.885] <-- reply(1)
I[20:00:24.944] --> textDocument/publishDiagnostics
I[20:00:24.944] --> textDocument/inactiveRegions
I[20:00:24.944] --> reply:textDocument/documentLink(1) 2277 ms, error: Task was cancelled.
I[20:00:24.944] --> reply:textDocument/inlayHint(2) 2277 ms
I[20:00:24.944] --> reply:textDocument/codeAction(4) 1786 ms, error: Task was cancelled.
I[20:00:24.944] --> reply:textDocument/codeAction(5) 1662 ms, error: Task was cancelled.
I[20:00:24.944] --> reply:textDocument/codeAction(6) 1516 ms, error: Task was cancelled.
I[20:00:24.944] --> reply:textDocument/documentLink(7) 1482 ms, error: Task was cancelled.
I[20:00:24.944] --> reply:textDocument/codeAction(8) 1481 ms, error: Task was cancelled.
I[20:00:24.944] --> reply:textDocument/documentLink(9) 1480 ms
I[20:00:24.944] --> reply:textDocument/semanticTokens/full(10) 1479 ms
I[20:00:24.944] --> reply:textDocument/documentSymbol(12) 1478 ms
I[20:00:24.944] --> reply:textDocument/codeAction(13) 158 ms, error: Task was cancelled.
I[20:00:24.944] --> reply:textDocument/documentSymbol(14) 157 ms
I[20:00:24.944] --> reply:textDocument/codeAction(15) 103 ms
I[20:00:24.945] --> textDocument/clangd.fileStatus
[Error - 8:00:24 PM] Request textDocument/documentLink failed.
[object Object]
[Error - 8:00:24 PM] Request textDocument/codeAction failed.
[object Object]
[Error - 8:00:24 PM] Request textDocument/codeAction failed.
[object Object]
[Error - 8:00:24 PM] Request textDocument/codeAction failed.
[object Object]
[Error - 8:00:24 PM] Request textDocument/documentLink failed.
[object Object]
[Error - 8:00:24 PM] Request textDocument/codeAction failed.
[object Object]
[Error - 8:00:24 PM] Request textDocument/codeAction failed.
[object Object]
I[20:00:25.013] <-- textDocument/codeAction(16)
I[20:00:25.013] --> reply:textDocument/codeAction(16) 0 ms
I[20:00:25.013] --> textDocument/clangd.fileStatus

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Trang chủ Giới thiệu Sinh nhật bé trai Sinh nhật bé gái Tổ chức sự kiện Biểu diễn giải trí Dịch vụ khác Trang trí tiệc cưới Tổ chức khai trương Tư vấn dịch vụ Thư viện ảnh Tin tức - sự kiện Liên hệ Chú hề sinh nhật Trang trí YEAR END PARTY công ty Trang trí tất niên cuối năm Trang trí tất niên xu hướng mới nhất Trang trí sinh nhật bé trai Hải Đăng Trang trí sinh nhật bé Khánh Vân Trang trí sinh nhật Bích Ngân Trang trí sinh nhật bé Thanh Trang Thuê ông già Noel phát quà Biểu diễn xiếc khỉ Xiếc quay đĩa Dịch vụ tổ chức sự kiện 5 sao Thông tin về chúng tôi Dịch vụ sinh nhật bé trai Dịch vụ sinh nhật bé gái Sự kiện trọn gói Các tiết mục giải trí Dịch vụ bổ trợ Tiệc cưới sang trọng Dịch vụ khai trương Tư vấn tổ chức sự kiện Hình ảnh sự kiện Cập nhật tin tức Liên hệ ngay Thuê chú hề chuyên nghiệp Tiệc tất niên cho công ty Trang trí tiệc cuối năm Tiệc tất niên độc đáo Sinh nhật bé Hải Đăng Sinh nhật đáng yêu bé Khánh Vân Sinh nhật sang trọng Bích Ngân Tiệc sinh nhật bé Thanh Trang Dịch vụ ông già Noel Xiếc thú vui nhộn Biểu diễn xiếc quay đĩa Dịch vụ tổ chức tiệc uy tín Khám phá dịch vụ của chúng tôi Tiệc sinh nhật cho bé trai Trang trí tiệc cho bé gái Gói sự kiện chuyên nghiệp Chương trình giải trí hấp dẫn Dịch vụ hỗ trợ sự kiện Trang trí tiệc cưới đẹp Khởi đầu thành công với khai trương Chuyên gia tư vấn sự kiện Xem ảnh các sự kiện đẹp Tin mới về sự kiện Kết nối với đội ngũ chuyên gia Chú hề vui nhộn cho tiệc sinh nhật Ý tưởng tiệc cuối năm Tất niên độc đáo Trang trí tiệc hiện đại Tổ chức sinh nhật cho Hải Đăng Sinh nhật độc quyền Khánh Vân Phong cách tiệc Bích Ngân Trang trí tiệc bé Thanh Trang Thuê dịch vụ ông già Noel chuyên nghiệp Xem xiếc khỉ đặc sắc Xiếc quay đĩa thú vị
Trang chủ Giới thiệu Sinh nhật bé trai Sinh nhật bé gái Tổ chức sự kiện Biểu diễn giải trí Dịch vụ khác Trang trí tiệc cưới Tổ chức khai trương Tư vấn dịch vụ Thư viện ảnh Tin tức - sự kiện Liên hệ Chú hề sinh nhật Trang trí YEAR END PARTY công ty Trang trí tất niên cuối năm Trang trí tất niên xu hướng mới nhất Trang trí sinh nhật bé trai Hải Đăng Trang trí sinh nhật bé Khánh Vân Trang trí sinh nhật Bích Ngân Trang trí sinh nhật bé Thanh Trang Thuê ông già Noel phát quà Biểu diễn xiếc khỉ Xiếc quay đĩa
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