# UnrealEngine/Engine/Source/ThirdParty/Linux/LibCxx/include/c++/v1/cstddef:43:15: fatal error: 'stddef.h' file not found #include\_next #455 **URL:** \ **Category:** Platform & Builds\ **Tags:** ubuntu, Linux, unreal-engine, bug-report, UE4, CPP, question\ **Created:** [September 5, 2017, 1:58pm UTC](https://forums.unrealengine.com/t/unrealengine-engine-source-thirdparty-linux-libcxx-include-c-v1-cstddef15-fatal-error-stddef-h-file-not-found-include-next-455/403796 "2017-09-05T13:58:49Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![anonymous\_user\_81394c1a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_81394c1a](https://forums.unrealengine.com/u/anonymous_user_81394c1a)\ **Post date:** [September 5, 2017, 1:58pm UTC](https://forums.unrealengine.com/t/unrealengine-engine-source-thirdparty-linux-libcxx-include-c-v1-cstddef15-fatal-error-stddef-h-file-not-found-include-next-455/403796/1 "2017-09-05T13:58:49Z")
When i compile the UnrealEngine4.17 source code in ubuntu 16.04 , both the ./Setup.sh and ./GenerateProjectFiles.sh are successful, but when type “make” command, the message is as follow: ddname-pc:~/UnrealEngine$ make bash “/home/ddname/UnrealEngine/Engine/Build/BatchFiles/Linux/Build.sh” CrashReportClient Linux Shipping Building CrashReportClient… Creating makefile for CrashReportClient (no existing makefile) Performing full C++ include scan (no include cache file) Using clang version ‘3.8.0’ (string), 3 (major), 8 (minor), 0 (patch) Building UnrealHeaderTool… Creating makefile for UnrealHeaderTool (no existing makefile) Performing full C++ include scan (no include cache file) Using clang version ‘3.8.0’ (string), 3 (major), 8 (minor), 0 (patch) Using bundled libc++ standard C++ library. Using fast way to relink circularly dependent libraries (no FixDeps). Performing 25 actions (12 in parallel) [3/25] Compile SharedPCH.Core.h [4/25] Compile Module.UnrealHeaderTool.cpp [1/25] Compile PCH.Core.h [2/25] Compile PCH.CoreUObject.h In file included from /home/ddname/UnrealEngine/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/Core/PCH.Core.h:46: In file included from /home/ddname/UnrealEngine/Engine/Source/Runtime/Core/Private/CorePrivatePCH.h:10: In file included from Runtime/Core/Public/GenericPlatform/GenericPlatformMisc.h:7: In file included from Runtime/Core/Public/HAL/PlatformCrt.h:5: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/new:70: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/exception:81: ThirdParty/Linux/LibCxx/include/c++/v1/cstddef:43:15: fatal error: ‘stddef.h’ file not found #include\_next ‘stddef.h’ ^ In file included from /home/ddname/UnrealEngine/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/Core/SharedPCH.Core.h:39: In file included from /home/ddname/UnrealEngine/Engine/Source/Runtime/Core/Public/CoreSharedPCH.h:7: In file included from Runtime/Core/Public/Misc/Exec.h:6: In file included from Runtime/Core/Public/Misc/AssertionMacros.h:6: In file included from Runtime/Core/Public/HAL/PlatformMisc.h:5: In file included from Runtime/Core/Public/GenericPlatform/GenericPlatformMisc.h:7: In file included from Runtime/Core/Public/HAL/PlatformCrt.h:5: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/new:70: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/exception:81: ThirdParty/Linux/LibCxx/include/c++/v1/cstddef:43:15: fatal error: ‘stddef.h’ file not found #include\_next ‘stddef.h’ ^ In file included from /home/ddname/UnrealEngine/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/CoreUObject/PCH.CoreUObject.h:42: In file included from /home/ddname/UnrealEngine/Engine/Source/Runtime/CoreUObject/Private/CoreUObjectPrivatePCH.h:6: In file included from Runtime/Core/Public/CoreMinimal.h:26: In file included from Runtime/Core/Public/HAL/PlatformCrt.h:5: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/new:70: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/exception:81: ThirdParty/Linux/LibCxx/include/c++/v1/cstddef:43:15: fatal error: ‘stddef.h’ file not found #include\_next ‘stddef.h’ ^ In file included from /home/ddname/UnrealEngine/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/UnrealHeaderTool/Module.UnrealHeaderTool.cpp:2: In file included from /home/ddname/UnrealEngine/Engine/Source/Programs/UnrealHeaderTool/Private/BaseParser.cpp:3: In file included from Programs/UnrealHeaderTool/Private/BaseParser.h:5: In file included from Runtime/Core/Public/CoreMinimal.h:26: In file included from Runtime/Core/Public/HAL/PlatformCrt.h:5: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/new:70: In file included from ThirdParty/Linux/LibCxx/include/c++/v1/exception:81: ThirdParty/Linux/LibCxx/include/c++/v1/cstddef:43:15: fatal error: ‘stddef.h’ file not found #include\_next ‘stddef.h’ ^ 1 error generated. 1 error generated. 1 error generated. 1 error generated. ERROR: UBT ERROR: Failed to produce item: /home/ddname/UnrealEngine/Engine/Binaries/Linux/libUnrealHeaderTool-Core.so Total build time: 3.71 seconds (Local executor: 0.00 seconds) Error: UnrealHeaderTool failed for target ‘CrashReportClient’ (platform: Linux, module info: /home/ddname/UnrealEngine/Engine/Intermediate/Build/Linux/B4D820EA/CrashReportClient/Shipping/CrashReportClient.uhtmanifest, exit code: OtherCompilationError (5)). Makefile:252: recipe for target ‘CrashReportClient-Linux-Shipping’ failed make: \*\*\* [CrashReportClient-Linux-Shipping] Error 5 how to solve this problem? ---
**Author:** ![LiXiaohuan\_wjw](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LiXiaohuan\_wjw](https://forums.unrealengine.com/u/LiXiaohuan_wjw)\ **Post date:** [May 29, 2024, 3:38pm UTC](https://forums.unrealengine.com/t/unrealengine-engine-source-thirdparty-linux-libcxx-include-c-v1-cstddef15-fatal-error-stddef-h-file-not-found-include-next-455/403796/2 "2024-05-29T15:38:04Z")
check if “Engine/Source/ThirdParty/Linux/LibCxx/include/c++/v1/stddef.h” file exist. This file should be , see UE git source： [UnrealEngine/Engine/Source/ThirdParty/Linux/LibCxx/include/c++/v1/stddef.h at 4.17.0-release · EpicGames/UnrealEngine (github.com)](https://github.com/EpicGames/UnrealEngine/blob/4.17.0-release/Engine/Source/ThirdParty/Linux/LibCxx/include/c%2B%2B/v1/stddef.h)