Topics tagged compile-error

Topic	Replies	Views	Activity
UE 5.8 C++ project named “Physics” fails to compile because LogPhysics is already defined by the engine Programming & Scripting bug , unreal-engine , compile-error	0	53	June 24, 2026
UE5.1 Expecting to find a type to be declared in a module rules named '......' C++ question , CPP , feedback , Plugins , unreal-engine , unreal-build-tool , compile-error , Engine-Source-Code	15	18451	February 24, 2026
Metahuman plugin C++ compile error. Feedback & Requests question , CPP , error , unreal-engine , compile-error , metahuman	0	64	January 6, 2026
UE 5.6 project creation fails on Default.rc2 / rc.exe — exit code -1 Feedback & Requests question , unreal-engine , error-building , compile-error , compilation-error	4	946	December 29, 2025
CommonUI Hard References Cause Blueprint Compilation Errors on Editor Reload Programming & Scripting Blueprint , question , editor , bug-report , UI , unreal-engine , compile-error	2	152	September 10, 2025
error LNK2019: unresolved external symbol for FOnlineSessionSettings::Get<class FName>(class FName,class FName &) C++ question , CPP , online , error , unreal-engine , compile-error , onlinesubsystem	2	121	June 30, 2025
[UE5.6 Upgrade] Error including ScenePrivate.h — Missing 'TranslucentPassResource.h' Rendering question , CPP , Rendering , error , compile , unreal-engine , need-help , compile-error , rhi	1	1022	June 24, 2025
FNetBitWriter compile error(5.6.0) C++ question , CPP , unreal-engine , compile-error	1	112	June 24, 2025
C4430 In MeshBasicEditFunctions.h C++ question , CPP , unreal-engine , compile-error	7	183	May 16, 2025
(5.4.4) Compile Errors: numerous "Failed to restore" ..."*.csproj" Programming & Scripting CPP , unreal-engine , compile-error	3	3820	December 4, 2024
I can't move and look around in the game! Please help me! Programming & Scripting Blueprint , question , error , unreal-engine , compile-error , charactermovementcom , how-can-i-fix-this	1	78	November 19, 2024
4.23.1 Package Unable To Compile with Target.cs issue Platform & Builds question , packaging-projects , unreal-engine , compile-error , Packaging-Error , engine-compile	6	1970	November 1, 2024
Got compile error when using TEXT(__FUNCTION__) in Engine\Source\Runtime\Core\Public\Math\Matrix.h C++ question , CPP , c-class-wizard , unreal-engine , compile-error , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri	0	87	October 24, 2024
C++ plugin packaging error problem Programming & Scripting question , CPP , c-class-wizard , unreal-engine , compile-error , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri , plugin	0	150	June 10, 2024
FGeometryScriptPrimitiveOptions struct causing compile errors C++ question , CPP , unreal-engine , compile-error	1	619	May 22, 2024
my game can't get compiled with a cuda error International unreal-engine , compile-error	5	2199	May 1, 2024
Pointer to incomplete class type is not allowed C++ question , CPP , unreal-engine , compile-error	10	56156	April 30, 2024
Error Building iOS Project Mobile iOS , question , compiling , unreal-engine , compile-error , xcode-ios	2	2146	April 24, 2024
DelegateSignatureImpl.inl errors when using lambdas in Unreal Engine C++ question , CPP , c-class-wizard , delegates , unreal-engine , compile-error , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri , plugin	0	205	April 22, 2024
Duplicate definitions with 3rd party glib C++ question , CPP , unreal-engine , build-failed , third-party-librarie , compile-error	2	1333	April 19, 2024
Any newly created C++ Class always cause errors ue5.2.1 C++ question , CPP , Visual-Studio , error , unreal-engine , compile-error	2	257	March 11, 2024
UpdateResourceW compile error after adding EOS SDK C++ question , CPP , unreal-engine , compile-error	3	1924	February 15, 2024
Link error using GetVectorParameterByName in C++ Feedback & Requests question , bug-report , unreal-engine , compile-error , linker-error	1	781	January 28, 2024
Plugin packaging gives compilation errors for unknown reasons. C++ question , CPP , compiling , Plugins , error , package , unreal-engine , Packaging , compile-error , Packaging-Error , UE5	3	576	January 26, 2024
Struct Compile Error Blueprint Blueprint , question , unreal-engine , Struct , compile-error	5	2430	December 13, 2023
How to deal with LNK2005 (redefinition) errors from third party libraries when using together? Plugins question , CPP , Plugins , unreal-engine , build-failed , package-error , libraries , compile-error , Third-Party , linker-error	2	668	December 11, 2023
PackagingResults: Error: Unknown Cook Failure Issues and Bug Reporting question , editor , unreal-engine , compile-error	0	212	December 1, 2023
Blueprint compilation error with Head Mounted Display nodes Blueprint Blueprint , question , unreal-engine , compile-error , Desktop-VR	6	1871	December 1, 2023
Critical Issue with UEFN engine, Null, String, Not Found Issues and Bug Reporting bug-report , Lighting , bug , error , package-error , null , string , day-night-cycle , ini , json , lighting-problem , log , compile-error , warning , launcher-error , linker-error , Packaging-Error , fortnite , unreal-editor-for-fortnite , fortnite-creative	0	451	November 4, 2023
hello i tried compiling my game and it gave a cuda error and fail Blueprint question , unreal-engine , compile-error	1	364	November 1, 2023

UE 5.8 C++ project named “Physics” fails to compile because LogPhysics is already defined by the engine

Programming & Scripting

bug , unreal-engine , compile-error

0

53

June 24, 2026

UE5.1 Expecting to find a type to be declared in a module rules named '......'

C++

question , CPP , feedback , Plugins , unreal-engine , unreal-build-tool , compile-error , Engine-Source-Code

15

18451

February 24, 2026

Metahuman plugin C++ compile error.

Feedback & Requests

question , CPP , error , unreal-engine , compile-error , metahuman

0

64

January 6, 2026

UE 5.6 project creation fails on Default.rc2 / rc.exe — exit code -1

Feedback & Requests

question , unreal-engine , error-building , compile-error , compilation-error

4

946

December 29, 2025

CommonUI Hard References Cause Blueprint Compilation Errors on Editor Reload

Programming & Scripting

Blueprint , question , editor , bug-report , UI , unreal-engine , compile-error

2

152

September 10, 2025

error LNK2019: unresolved external symbol for FOnlineSessionSettings::Get<class FName>(class FName,class FName &)

C++

question , CPP , online , error , unreal-engine , compile-error , onlinesubsystem

2

121

June 30, 2025

[UE5.6 Upgrade] Error including ScenePrivate.h — Missing 'TranslucentPassResource.h'

Rendering

question , CPP , Rendering , error , compile , unreal-engine , need-help , compile-error , rhi

1

1022

June 24, 2025

FNetBitWriter compile error(5.6.0)

C++

question , CPP , unreal-engine , compile-error

1

112

June 24, 2025

C4430 In MeshBasicEditFunctions.h

C++

question , CPP , unreal-engine , compile-error

7

183

May 16, 2025

(5.4.4) Compile Errors: numerous "Failed to restore" ..."*.csproj"

Programming & Scripting

CPP , unreal-engine , compile-error

3

3820

December 4, 2024

I can't move and look around in the game! Please help me!

Programming & Scripting

Blueprint , question , error , unreal-engine , compile-error , charactermovementcom , how-can-i-fix-this

1

78

November 19, 2024

4.23.1 Package Unable To Compile with Target.cs issue

Platform & Builds

question , packaging-projects , unreal-engine , compile-error , Packaging-Error , engine-compile

6

1970

November 1, 2024

Got compile error when using TEXT(__FUNCTION__) in Engine\Source\Runtime\Core\Public\Math\Matrix.h

C++

question , CPP , c-class-wizard , unreal-engine , compile-error , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri

0

87

October 24, 2024

C++ plugin packaging error problem

Programming & Scripting

question , CPP , c-class-wizard , unreal-engine , compile-error , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri , plugin

0

150

June 10, 2024

FGeometryScriptPrimitiveOptions struct causing compile errors

C++

question , CPP , unreal-engine , compile-error

1

619

May 22, 2024

my game can't get compiled with a cuda error

International

unreal-engine , compile-error

5

2199

May 1, 2024

Pointer to incomplete class type is not allowed

C++

question , CPP , unreal-engine , compile-error

10

56156

April 30, 2024

Error Building iOS Project

Mobile

iOS , question , compiling , unreal-engine , compile-error , xcode-ios

2

2146

April 24, 2024

DelegateSignatureImpl.inl errors when using lambdas in Unreal Engine

C++

question , CPP , c-class-wizard , delegates , unreal-engine , compile-error , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri , plugin

0

205

April 22, 2024

Duplicate definitions with 3rd party glib

C++

question , CPP , unreal-engine , build-failed , third-party-librarie , compile-error

2

1333

April 19, 2024

Any newly created C++ Class always cause errors ue5.2.1

C++

question , CPP , Visual-Studio , error , unreal-engine , compile-error

2

257

March 11, 2024

UpdateResourceW compile error after adding EOS SDK

C++

question , CPP , unreal-engine , compile-error

3

1924

February 15, 2024

Link error using GetVectorParameterByName in C++

Feedback & Requests

question , bug-report , unreal-engine , compile-error , linker-error

1

781

January 28, 2024

Plugin packaging gives compilation errors for unknown reasons.

C++

question , CPP , compiling , Plugins , error , package , unreal-engine , Packaging , compile-error , Packaging-Error , UE5

3

576

January 26, 2024

Struct Compile Error

Blueprint

Blueprint , question , unreal-engine , Struct , compile-error

5

2430

December 13, 2023

How to deal with LNK2005 (redefinition) errors from third party libraries when using together?

Plugins

question , CPP , Plugins , unreal-engine , build-failed , package-error , libraries , compile-error , Third-Party , linker-error

2

668

December 11, 2023

PackagingResults: Error: Unknown Cook Failure

Issues and Bug Reporting

question , editor , unreal-engine , compile-error

0

212

December 1, 2023

Blueprint compilation error with Head Mounted Display nodes

Blueprint

Blueprint , question , unreal-engine , compile-error , Desktop-VR

6

1871

December 1, 2023

Critical Issue with UEFN engine, Null, String, Not Found

Issues and Bug Reporting

bug-report , Lighting , bug , error , package-error , null , string , day-night-cycle , ini , json , lighting-problem , log , compile-error , warning , launcher-error , linker-error , Packaging-Error , fortnite , unreal-editor-for-fortnite , fortnite-creative

0

451

November 4, 2023

hello i tried compiling my game and it gave a cuda error and fail

Blueprint

question , unreal-engine , compile-error

1

364

November 1, 2023