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ERROR: System.ArgumentException: Empty path fragment in staged filesystem reference

After the 4.18 update I'm getting this annoying error when packaging. Did anyone else run into this problem?

 UATHelper: Packaging (Windows (64-bit)): ERROR: System.ArgumentException: Empty path fragment in staged filesystem reference (HideAndGoBoom/Content/)
 UATHelper: Packaging (Windows (64-bit)):           at StagedFileSystemReference..ctor(String Name)
 UATHelper: Packaging (Windows (64-bit)):           at StagedDirectoryReference..ctor(String Name)
 UATHelper: Packaging (Windows (64-bit)):           at StagedDirectoryReference.Combine(StagedDirectoryReference BaseDir, String[] Fragments)
 UATHelper: Packaging (Windows (64-bit)):           at Project.CreateStagingManifest(ProjectParams Params, DeploymentContext SC)
 UATHelper: Packaging (Windows (64-bit)):           at Project.CopyBuildToStagingDirectory(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)):        (see C:\Users\raspe\AppData\Roaming\Unreal Engine\AutomationTool\Logs\E+UE4+UE_4.18\UAT_Log.txt for full exception trace)
 UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=1 (Error_Unknown)
 UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
 PackagingResults: Error: Unknown Error
Product Version: UE 4.18
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asked Oct 25 '17 at 07:55 PM in Packaging & Deployment

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Rasped
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Dunno if this helps!? I just had this issue after an upgrade to 4.17 and it turned out to be a blank array entry in my Project Settings > Packaging > 'Directories to never cook'. The error disappeared and built successfully as soon as I deleted the entry.alt text

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answered Oct 26 '17 at 04:51 PM

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XF11
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avatar image Rasped Oct 27 '17 at 11:06 PM

You are a legend, I had one in "additional asset directories to cook".

avatar image Parvan Dec 13 '17 at 09:05 AM

How on earth did you find that!? I spent days trying to figure out what was going on. Thanks!!!

Silly me quickly checked for Directories Never To Cook a few days ago, but skipped looking at "Additional Asset Directories to Cook." My problem was also a blank array entry in "Additional Asset Directories to Cook" under Project Settings > Packaging.

avatar image XF11 Dec 13 '17 at 10:18 AM

haha pure luck really! (and a couple of hours of google searches and trial and error!) Glad it helped :)

avatar image 15150681678 Nov 21 '18 at 03:00 AM

Hi, I have add a value "Version" in Additional No-Asset Directories to stage package,but it looks like I meet same problem.What should I do?

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