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Error: Error Unknown Cook Failure

MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: Execution of commandlet took: 480.00 seconds MainFrameActions: Packaging (Windows (64-bit)): CommandUtils.Run: Run: Took 490.8367643s 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(List`1 CommandsToExecute, CaselessDictionary`1 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 D:\AI\AI.uproject; see log C:\Users\Wu Tangjun\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+Epic+Games+4.10\Cook-2016.05.22-21.58.04.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

My project can be launched but when I try to package it, it always has this error.

Product Version: UE 4.10
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asked May 22 '16 at 02:08 PM in Packaging & Deployment

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1 2 2

avatar image WTJ May 23 '16 at 07:23 AM

I have tried shipping configuration and installed VS, it still doesn't work.

avatar image Sean L ♦♦ STAFF May 26 '16 at 06:14 PM


Please provide the full output log so we can take a closer look at what errors you are experiencing.

Thank you

avatar image WTJ May 27 '16 at 03:51 AM

This is the output log part1

avatar image WTJ May 27 '16 at 03:55 AM

This is part2. please help me. Thank you.

avatar image Sean L ♦♦ STAFF May 27 '16 at 12:57 PM

After looking at the output log, it appears that there are several errors related to warnings in your blueprints. If you'd like to provide the project, I can take a look at it and see if there is anything that stands out that could help resolve these errors.

You can zip up the project, upload it to Dropbox, and provide me with a link to download it. You can PM me the link on the forums: https://forums.unrealengine.com/member.php?160394-Sean-Flint

avatar image WTJ May 28 '16 at 06:01 AM

I have sent you the link,thanks for your patience.

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After looking into your project, it appears that there are several blueprints that are failing to compile, which is causing your build to fail. What you'll need to do is go through and resolve all warnings and compiler errors in your blueprints (which you can find by looking at the output log) and then you should be able to build successfully.

Have a great day

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answered May 31 '16 at 02:40 PM

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Sean L ♦♦ STAFF
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