Unreal Engine Issues and Bug Tracker (UE-49673)

Description

A project does not cook with actors containing ModularSynth component. The error is a follows

UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: begin: stack for UAT
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: === Critical error: ===
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: 
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: Fatal error!
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: 
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000c
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: 
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-AudioMixer.dll!USynthComponent::OnRegister() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\audiomixer\private\components\synthcomponent.cpp:112]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Engine.dll!UActorComponent::ExecuteRegisterEvents() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\actorcomponent.cpp:1236]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Engine.dll!UActorComponent::RegisterComponentWithWorld() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\actorcomponent.cpp:974]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Engine.dll!AActor::IncrementalRegisterComponents() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\actor.cpp:4123]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Engine.dll!ULevel::IncrementalUpdateComponents() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\level.cpp:911]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Engine.dll!UWorld::UpdateWorldComponents() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\world.cpp:1576]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-UnrealEd.dll!UEditorEngine::Save() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:4188]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-UnrealEd.dll!UCookOnTheFlyServer::SaveCookedPackage() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\cookontheflyserver.cpp:3238]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-UnrealEd.dll!UCookOnTheFlyServer::SaveCookedPackages() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\cookontheflyserver.cpp:2324]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-UnrealEd.dll!UCookOnTheFlyServer::TickCookOnTheSide() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\cookontheflyserver.cpp:1786]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-UnrealEd.dll!UCookCommandlet::CookByTheBook() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\commandlets\cookcommandlet.cpp:906]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-UnrealEd.dll!UCookCommandlet::Main() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\commandlets\cookcommandlet.cpp:582]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Cmd.exe!FEngineLoop::PreInit() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2134]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Cmd.exe!GuardedMain() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\launch.cpp:127]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Cmd.exe!GuardedMainWrapper() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Cmd.exe!WinMain() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:210]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: UE4Editor-Cmd.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: kernel32.dll!0x00000000777B59CD
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: ntdll.dll!0x00000000778EA561
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: ntdll.dll!0x00000000778EA561
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: 
UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: end: stack for UAT
UATHelper: Packaging (Windows (64-bit)): CommandUtils.Run: Run: Took 33.5183515s to run UE4Editor-Cmd.exe, ExitCode=3
UATHelper: Packaging (Windows (64-bit)): Project.Cook: Cook failed. Deleting cooked data.
UATHelper: Packaging (Windows (64-bit)): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Cook failed. ---> AutomationTool.CommandletException: BUILD FAILED: Failed while running Cook for D:\Answerhub_repro_proj\MyProject80\MyProject80.uproject; see log C:\Users\Thomas.Vanzeeland\AppData\Roaming\Unreal Engine
\AutomationTool\Logs\D+EpicLauncher+Epic+Games+UE_4.17\Cook-2017.09.11-16.40.29.txt
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.CommandUtils.RunCommandlet(FileReference ProjectName, String UE4Exe, String Commandlet, String Parameters)
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.CommandUtils.CookCommandlet(FileReference ProjectName, String UE4Exe, String[] Maps, String[] Dirs, String InternationalizationPreset, String[] CulturesToCook, String TargetPlatform, String Parameters)
UATHelper: Packaging (Windows (64-bit)):    at Project.Cook(ProjectParams Params)
UATHelper: Packaging (Windows (64-bit)):    --- End of inner exception stack trace ---
UATHelper: Packaging (Windows (64-bit)):    at Project.Cook(ProjectParams Params)
UATHelper: Packaging (Windows (64-bit)):    at BuildCookRun.DoBuildCookRun(ProjectParams Params)
UATHelper: Packaging (Windows (64-bit)):    at BuildCookRun.ExecuteBuild()
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.BuildCommand.Execute()
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.Automation.Execute(List`1 CommandsToExecute, Dictionary`2 Commands)
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.Automation.Process(String[] Arguments)
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.Program.MainProc(Object Param)
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.InternalUtils.RunSingleInstance(Func`2 Main, Object Param)
UATHelper: Packaging (Windows (64-bit)):    at AutomationTool.Program.Main()
UATHelper: Packaging (Windows (64-bit)): Program.Main: AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults: Error: Unknown Cook Failure

This issue appears to be a regression.

Versions Tested:
4.16.3 - CL: 3561208 - Issue does not occur
4.17.1 - CL: 3586342 - Issue occurs
4.18 - CL: 3597901 - Issue Occurs

Steps to Reproduce

Create a new project (no template or starter content needed)
Go to plugins > Audio > check the boxes for "Sound Utilities" and "Sythesis"
Add an empty actor to the level
Click the Add/Edit blueprint button for the empty actor and create a new actor class blueprint
In the new Actor add a ModularSynth component
In the project settings set the map to the startup map
Package the project for Windows > 64 bit
Result: The editor does not successfully package the project
Expected Result: The editor packages the project successfully

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Fixed

Component	UE - Audio
Affects Versions	4.17.1, 4.18
Target Fix	4.17.2, 4.18

Fix Commit	3657421
Main Commit	3683447
Release Commit	3657421

Created	Sep 13, 2017
Resolved	Sep 13, 2017
Updated	Apr 27, 2018

View Jira Issue

UE-49673

CLONE - Project does not cook with actors containing ModularSynth component

CLONE - Project does not cook with actors containing ModularSynth component

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