i got this error when packaged a project in 5.7

[ahmednabil6000]

UATHelper: Error: Packaging (Windows): Module.LiveCoding.cpp.obj : error LNK2019: unresolved external symbol __std_search_1 referenced in function “char const * __cdecl std::_Search_vectorized<char const ,char const >(char const * const,char const * const,char const * const,unsigned __int64)” (??$_Search_vectorized@$$CBD$$CBD@std@@YAPEBDQEBD00_K@Z)
UATHelper: Error: Packaging (Windows): Module.LiveCoding.cpp.obj : error LNK2019: unresolved external symbol __std_search_2 referenced in function “wchar_t const * __cdecl std::_Search_vectorized<wchar_t const ,wchar_t const >(wchar_t const * const,wchar_t const * const,wchar_t const * const,unsigned __int64)” (??$_Search_vectorized@$$CB_W$$CB_W@std@@YAPEB_WQEB_W00_K@Z)
UATHelper: Error: Packaging (Windows): Module.GeometryAlgorithms.1.cpp.obj : error LNK2019: unresolved external symbol __std_mismatch_4 referenced in function “void __cdecl std::_Make_heap_unchecked<class std::array<int,2> *,struct std::less >(class std::array<int,2> *,class std::array<int,2> *,struct std::less)” (??$_Make_heap_unchecked@PEAV?$array@H$01@std@@U?$less@X@2@@std@@YAXPEAV?$array@H$01@0@0U?$less@X@0@@Z)
UATHelper: Error: Packaging (Windows): Module.GeometryAlgorithms.2.cpp.obj : error LNK2001: unresolved external symbol __std_mismatch_4
UATHelper: Error: Packaging (Windows): Module.GeometryAlgorithms.2.cpp.obj : error LNK2019: unresolved external symbol __std_minmax_element_d referenced in function “struct std::pair<double *,double *> __cdecl std::_Minmax_element_vectorized(double * const,double * const)” (??$_Minmax_element_vectorized@N@std@@YA?AU?$pair@PEANPEAN@0@QEAN0@Z)
UATHelper: Error: Packaging (Windows): Module.TraceAnalysis.cpp.obj : error LNK2019: unresolved external symbol __std_find_first_of_trivial_pos_1 referenced in function “unsigned __int64 __cdecl std::_Find_first_of_pos_vectorized<char,char>(char const * const,unsigned __int64,char const * const,unsigned __int64)” (??$_Find_first_of_pos_vectorized@DD@std@@YA_KQEBD_K01@Z)
UATHelper: Error: Packaging (Windows): reverb_onset_compensator.cc.obj : error LNK2019: unresolved external symbol __std_minmax_element_f referenced in function “struct std::pair<float *,float *> __cdecl std::_Minmax_element_vectorized(float * const,float * const)” (??$_Minmax_element_vectorized@M@std@@YA?AU?$pair@PEAMPEAM@0@QEAM0@Z)
UATHelper: Error: Packaging (Windows): reverb_node.cc.obj : error LNK2019: unresolved external symbol __std_max_element_f referenced in function “float * __cdecl std::_Max_element_vectorized(float * const,float * const)” (??$_Max_element_vectorized@M@std@@YAPEAMQEAM0@Z)
UATHelper: Error: Packaging (Windows): G:\Unreal\Emaark\Sea Gate\5.7\Sea_Gate\Binaries\Win64\Sea_Gate.exe : fatal error LNK1120: 7 unresolved externals

[SmartAIGames]

I have that as well.
Module.GeometryAlgorithms.1.cpp.obj : error LNK2019
Module.GeometryAlgorithms.2.cpp.obj : error LNK2001
Module.GeometryAlgorithms.2.cpp.obj : error LNK2019
reverb_onset_compensator.cc.obj : error LNK2019

It appears even in empty new project. I think we need to update visual studio to have greater version than MSVC143, but I didnt try it yet.

[unit23]

@SmartAIGames

I think we need to update visual studio

Indeed, and the officially supported and most stable choice is still Visual Studio 2022.

[JaysterJY]

Go into project files, delete:
.vs
Binaries
Build
Intermediate
Saved
.sln

Update Virtual Studio.

Then right-click on the project file and generate Visual Studio project files.

Open the project. Try to package again.

[KryvenGames]

Can confirmed this solved my issue

[BrudizDev]

Did you updated 2022 version or installed 2026?

[ahmednabil6000]

update 2022

[PhilippeC31T]

it works . Thank you

[Nerdsbeware (Snacky Otter Studios)]

Can confirm this works as well. Here I was adding dependencies for an hour, never occurred to me to try updating.

[JaredC]

I had this error as well. I had to make sure MSVC 14.44 was installed, updated BuildConfiguration.xml to match, deleted Binaries/Intermediate, regenerated project files, and then it was able to package in 5.7:

<?xml version="1.0" encoding="utf-8" ?>
<Configuration xmlns="https://www.unrealengine.com/BuildConfiguration">
	<WindowsPlatform>
		<Compiler>VisualStudio2022</Compiler>
		<CompilerVersion>14.44.35207</CompilerVersion>
		<ToolchainVersion>14.44.35207</ToolchainVersion>
	</WindowsPlatform>
</Configuration>

[2023guy]

Thank you. This worked for me also! Just deleted the files mentioned above and updated Visual Studio to the latest version. Restarted and the Package Built without Errors!