An error I can't fix

when I try to cook my project it get these error msg
LogClass: Warning: In asset ‘None’, there is an enum property of type ‘EIOSVersion’ with an invalid value of ‘IOS_12’
LogObj: Error: LoadConfig (/Script/IOSRuntimeSettings.Default__IOSRuntimeSettings): import failed for MinimumiOSVersion in: IOS_12
LogFactory: Error: Can’t find file ‘D:/Games/UE_5.0/FeaturePacks/StarterContent.upack’ for import
LogAssetTools: Warning: Failed to import ‘D:/Games/UE_5.0/FeaturePacks/StarterContent.upack’. Failed to create asset ‘/Game/StarterContent’.
Please see Output Log for details.
LogFeaturePack: Warning: No objects imported installing pack StarterContent.upack
LogEditorServer: Warning: Can’t find file ‘C:/Users/Gavin/Documents/Unreal Projects/youtube 5.0 5.0 - 2/Content/FirstPersonBP/Maps/FirstPersonExampleMap.umap’
LogInput: Warning: Action Jump uses invalid key Daydream_Left_Select_Click.
LogInput: Warning: Action Fire uses invalid key Daydream_Left_Trackpad_Click.
LogInput: Warning: Action Jump uses invalid key MagicLeap_Left_Trigger.
LogInput: Warning: Action Fire uses invalid key MagicLeap_Left_Trackpad_Touch.
LogInput: Warning: Action ResetVR uses invalid key MagicLeap_Left_Bumper.
LogInput: Warning: Action Jump uses invalid key MagicLeap_Right_Trigger.
LogInput: Warning: Action Fire uses invalid key MagicLeap_Right_Trackpad_Touch.
LogInput: Warning: Action ResetVR uses invalid key MagicLeap_Right_Bumper.
LogInput: Warning: Use -RemoveInvalidKeys to remove instances of these keys from the action mapping.
PackagingResults: Warning: [AssetLog] C:\Users\Gavin\Documents\Unreal Projects\youtube 5.0 5.0 - 2\Content\Maps\Main_menu.umap: Failed to load ‘/Engine/EngineSky/M_SkyTimeOfDay’: Can’t find file.
PackagingResults: Warning: VerifyImport: Failed to load package for import object ‘Package /Engine/EngineSky/M_SkyTimeOfDay’
PackagingResults: Error: begin: stack for UAT
PackagingResults: Error: === Critical error: ===
PackagingResults: Error: Assertion failed: OutputPin->LinkedTo.Num() > 0 [File:D:\build++UE5\Sync\Engine\Source\Editor\KismetCompiler\Private\KismetCompiler.cpp] [Line: 323]
PackagingResults: Error: [Callstack] 0x00007ff88d27a09b UnrealEditor-KismetCompiler.dll!UE::KismetCompiler::Private::GetLinkedDelegateSignature() [D:\build++UE5\Sync\Engine\Source\Editor\KismetCompiler\Private\KismetCompiler.cpp:323]
PackagingResults: Error: [Callstack] 0x00007ff88d27df8d UnrealEditor-KismetCompiler.dll!UE::KismetCompiler::Private::MatchNodesToDelegateSignatures() [D:\build++UE5\Sync\Engine\Source\Editor\KismetCompiler\Private\KismetCompiler.cpp:421]
PackagingResults: Error: [Callstack] 0x00007ff899a4f9f8 UnrealEditor-Kismet.dll!FBlueprintCompilationManagerImpl::FlushCompilationQueueImpl() [D:\build++UE5\Sync\Engine\Source\Editor\Kismet\Private\BlueprintCompilationManager.cpp:848]
PackagingResults: Error: [Callstack] 0x00007ff899a4e303 UnrealEditor-Kismet.dll!FBlueprintCompilationManager::FlushCompilationQueue() [D:\build++UE5\Sync\Engine\Source\Editor\Kismet\Private\BlueprintCompilationManager.cpp:3136]
PackagingResults: Error: [Callstack] 0x00007ff8b59b7660 UnrealEditor-CoreUObject.dll!FScopedClassDependencyGather::~FScopedClassDependencyGather() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\Blueprint\BlueprintSupport.cpp:507]
PackagingResults: Error: [Callstack] 0x00007ff8b5bd09a7 UnrealEditor-CoreUObject.dll!FLinkerLoad::CreateExport() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp:5148]
PackagingResults: Error: [Callstack] 0x00007ff8b5bcf4f4 UnrealEditor-CoreUObject.dll!FLinkerLoad::CreateExport() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp:4743]
PackagingResults: Error: [Callstack] 0x00007ff8b5bd0e5b UnrealEditor-CoreUObject.dll!FLinkerLoad::CreateExportAndPreload() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp:3745]
PackagingResults: Error: [Callstack] 0x00007ff8b5c13cad UnrealEditor-CoreUObject.dll!FLinkerLoad::LoadAllObjects() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp:3921]
PackagingResults: Error: [Callstack] 0x00007ff8b5dd9147 UnrealEditor-CoreUObject.dll!LoadPackageInternal() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1346]
PackagingResults: Error: [Callstack] 0x00007ff8b5dd7b7a UnrealEditor-CoreUObject.dll!LoadPackage() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1520]
PackagingResults: Error: [Callstack] 0x00007ff8b5dd80d0 UnrealEditor-CoreUObject.dll!LoadPackage() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1500]
PackagingResults: Error: [Callstack] 0x00007ff891d109a3 UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::LoadPackageForCooking() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\CookOnTheFlyServer.cpp:2850]
PackagingResults: Error: [Callstack] 0x00007ff891d10c2f UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::LoadPackageInQueue() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\CookOnTheFlyServer.cpp:1985]
PackagingResults: Error: [Callstack] 0x00007ff891d29baa UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::PumpLoads() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\CookOnTheFlyServer.cpp:1895]
PackagingResults: Error: [Callstack] 0x00007ff891d4f487 UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::TickCookOnTheSide() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\CookOnTheFlyServer.cpp:1259]
PackagingResults: Error: [Callstack] 0x00007ff891b5b1bd UnrealEditor-UnrealEd.dll!UCookCommandlet::CookByTheBook() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\Commandlets\CookCommandlet.cpp:1048]
PackagingResults: Error: [Callstack] 0x00007ff891b7cb5c UnrealEditor-UnrealEd.dll!UCookCommandlet::Main() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\Commandlets\CookCommandlet.cpp:685]
PackagingResults: Error: [Callstack] 0x00007ff78e76948e UnrealEditor-Cmd.exe!FEngineLoop::PreInitPostStartupScreen() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:3659]
PackagingResults: Error: [Callstack] 0x00007ff78e760bbd UnrealEditor-Cmd.exe!GuardedMain() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:137]
PackagingResults: Error: [Callstack] 0x00007ff78e760e8a UnrealEditor-Cmd.exe!GuardedMainWrapper() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:147]
PackagingResults: Error: [Callstack] 0x00007ff78e763c4d UnrealEditor-Cmd.exe!LaunchWindowsStartup() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:283]
PackagingResults: Error: [Callstack] 0x00007ff78e775564 UnrealEditor-Cmd.exe!WinMain() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:330]
PackagingResults: Error: [Callstack] 0x00007ff78e77788a UnrealEditor-Cmd.exe!__scrt_common_main_seh() [d:\a01_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
PackagingResults: Error: [Callstack] 0x00007ff90dd07034 KERNEL32.DLL!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff90eb82651 ntdll.dll!UnknownFunction []
PackagingResults: Error: end: stack for UAT
PackagingResults: Error: Cook failed.

can anyone help?

Fix this issue, and then retry to cook.
LogClass: Warning: In asset ‘None’, there is an enum property of type ‘EIOSVersion’ with an invalid value of ‘IOS_12’

PackagingResults: Error: [Callstack] 0x00007ff8b5dd9147 UnrealEditor-CoreUObject.dll!LoadPackageInternal() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1346]
PackagingResults: Error: [Callstack] 0x00007ff8b5dd7b7a UnrealEditor-CoreUObject.dll!LoadPackage() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1520]
PackagingResults: Error: [Callstack] 0x00007ff8b5dd80d0 UnrealEditor-CoreUObject.dll!LoadPackage() [D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1500]

Breakpoint around here to find the blueprint that cause cook error.
Some of your delegate binding nodes have error.

By the way, your topic’s name is too ambiguous and you will less likely get supported from other member.