Showdown VR Demo Build 4.9

When we try to build Win64 in 4.9 we get a failed build with the error

MainFrameActions: Packaging (Windows (64-bit)): CommandUtils.Run: Run: Took 35.0279915s to run UE4Editor-Cmd.exe, ExitCode=1

MainFrameActions: Packaging (Windows (64-bit)): Project.Cook: Cook failed. Deleting cooked data.

MainFrameActions: Packaging (Windows (64-bit)): BuildCommand.Execute: ERROR: BUILD FAILED

MainFrameActions: Packaging (Windows (64-bit)): Program.Main: ERROR: AutomationTool terminated with exception:

MainFrameActions: Packaging (Windows (64-bit)): Program.Main: ERROR: Exception in AutomationScripts.Automation: Cook failed.

MainFrameActions: Packaging (Windows (64-bit)): Stacktrace: at Project.Cook(ProjectParams Params)

MainFrameActions: Packaging (Windows (64-bit)): at BuildCookRun.DoBuildCookRun(ProjectParams Params)

MainFrameActions: Packaging (Windows (64-bit)): at BuildCommand.Execute()

MainFrameActions: Packaging (Windows (64-bit)): at AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary1 Commands)

MainFrameActions: Packaging (Windows (64-bit)): at AutomationTool.Automation.Process(String[] CommandLine)

MainFrameActions: Packaging (Windows (64-bit)): at AutomationTool.Program.MainProc(Object Param)

MainFrameActions: Packaging (Windows (64-bit)): at AutomationTool.InternalUtils.RunSingleInstance(Action`1 Main, Object Param)

MainFrameActions: Packaging (Windows (64-bit)): at AutomationTool.Program.Main()InnerException in AutomationUtils.Automation: BUILD FAILED: Failed while running Cook for C:\Users\admin\Documents\Unreal Projects\ShowdownVRDemo\ShowdownVRDemo.uproject; see log C:\Users\admin\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+4.9\Cook-2015.09.02-12.54.12.txt

MainFrameActions: Packaging (Windows (64-bit)): Stacktrace: at AutomationTool.CommandUtils.RunCommandlet(String ProjectName, String UE4Exe, String Commandlet, String Parameters)

MainFrameActions: Packaging (Windows (64-bit)): at Project.Cook(ProjectParams Params)

MainFrameActions: Packaging (Windows (64-bit)): ProcessManager.KillAll: Trying to kill 0 spawned processes.

MainFrameActions: Packaging (Windows (64-bit)): Program.Main: AutomationTool exiting with ExitCode=Error_UnknownCookFailure

MainFrameActions: Packaging (Windows (64-bit)): Domain_ProcessExit

MainFrameActions: Packaging (Windows (64-bit)): copying UAT log files…

MainFrameActions: Packaging (Windows (64-bit)): RunUAT.bat ERROR: AutomationTool was unable to run successfully.

MainFrameActions: Packaging (Windows (64-bit)): BUILD FAILED

PackagingResults:Error: Error Unknown Cook Failure

I’m getting the same error.

seems to work correctly audio from characters responds to VR head turns

Same error. And I can’t even get it to play at all… So much frustration…

When loading in 4.9 i found and error in /Game/Audio/Blueprints/Surrondpanner

in the event Graph:
GetWorldRotation and GetTargetLocation were invalid and pointing at self

to fix I Replaced the two invalid function instances with a valid target “AudioCenter”

I cooked and played and audio tracked head movement properly.

Tested the compile because my 4.8 project which I migrated to 4.9 no longer compiles either. I figured I’d try compiling the VR demo, and it failed, just like most people are reporting.
Annoyingly with an unknown cook failure, which is very non-descript :frowning:

if you read the full log file it tells you exactly where it failed. the summary is useless :confused:

The demo is working for me with 10.4. Did you try with the latest updates?

Its been working since 4.9+ so this thread can be closed.