# Anyone tried latest build of UE4 with Flex?

**URL:** <https://forums.unrealengine.com/t/anyone-tried-latest-build-of-ue4-with-flex/314502>\
**Category:** Platform & Builds\
**Tags:** c-build, Linux, unreal-engine, bug-report, UE4, question\
**Created:** [April 9, 2015, 10:10pm UTC](https://forums.unrealengine.com/t/anyone-tried-latest-build-of-ue4-with-flex/314502 "2015-04-09T22:10:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rkrash](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@rkrash](https://forums.unrealengine.com/u/rkrash)\
**Post date:** [April 9, 2015, 10:10pm UTC](https://forums.unrealengine.com/t/anyone-tried-latest-build-of-ue4-with-flex/314502/1 "2015-04-09T22:10:49Z")

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I am getting an error when cross-compiling Linux engine in VS2013 and 12. Selected configuration is Development/Linux. Win64 builds fine.

* * *

1\> [1/2] Compile Module.Engine.28\_of\_30.cpp  
1\> In file included from C:\Dev\Ue4Flex\UnrealEngine\Engine\Intermediate\Build\Linux\x86\_64-unknown-linux-gnu\UE4Game\Development\Engine\Module.Engine.28\_of\_30.cpp:1:

1\> In file included from C:\Dev\Ue4Flex\UnrealEngine\Engine\Intermediate\Build\Linux\x86\_64-unknown-linux-gnu\UE4Game\Development\Engine\EnginePrivate.h:4:

1\> In file included from C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime\Engine\Private\EnginePrivate.h:8:

1\> In file included from C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime/CoreUObject/Public\CoreUObject.h:7:

1\> In file included from C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime/Core/Public\Core.h:69:

1\>C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime/Core/Public/Containers\Set.h(51,10): error : no matching function for call to ‘GetTypeHash’

1\> return GetTypeHash(Key);

1\> ^ ~~~~~~~~~~

1\> C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime/Core/Public/Containers\Set.h(507,57) : note: in instantiation of member function ‘DefaultKeyFuncs::GetKeyHash’ requested here

1\> for(FSetElementId ElementId = GetTypedHash(KeyFuncs::GetKeyHash(Key));

1\> ^

1\> C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime/Core/Public/Containers\Set.h(410,31) : note: in instantiation of member function ‘TSet, FDefaultSetAllocator\>::FindId’ requested here

1\> FSetElementId ExistingId = FindId(KeyFuncs::GetSetKey(Element.Value));

1\> ^

1\> C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime/Core/Public/Containers\Set.h(389,107) : note: in instantiation of function template specialization ‘TSet, FDefaultSetAllocator\>::Emplace’ requested here

1\> FORCEINLINE FSetElementId Add( InElementType&& InElement, bool\* bIsAlreadyInSetPtr = NULL) { return Emplace(MoveTemp(InElement), bIsAlreadyInSetPtr); }

1\> ^

1\> C:\Dev\Ue4Flex\UnrealEngine\Engine\Source\Runtime\Engine\Private\PhysicsEngine\FlexContainerInstance.cpp(214,16) : note: in instantiation of member function ‘TSet, FDefaultSetAllocator\>::Add’ requested here

1\> OverlapSet.Add(PxActorShape(Actor, Shape), &alreadyProcessed);

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**Author:** ![JoseRoch](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@JoseRoch](https://forums.unrealengine.com/u/JoseRoch)\
**Post date:** [May 14, 2018, 3:02pm UTC](https://forums.unrealengine.com/t/anyone-tried-latest-build-of-ue4-with-flex/314502/2 "2018-05-14T15:02:24Z")

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I am getting that exact error when trying to Install Unreal with NVIDIA Flex. Did you ever get a solution for this? I am using Ubuntu 16 and I already have Normal Unreal installed without problems.