Packaging Failed SafeCopyFile Exception

MainFrameActions: Packaging (Windows (64-bit)): InternalUtils.SafeCopyFile: WARNING: SafeCopyFile Exception was Exception in mscorlib: Could not find file ‘D:\pzea\Documents\Unreal Projects\mdotexe_4_10\Intermediate\Staging\mdotexe.exe’.
MainFrameActions: Packaging (Windows (64-bit)): Stacktrace: at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
MainFrameActions: Packaging (Windows (64-bit)): at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite, Boolean checkHost)
MainFrameActions: Packaging (Windows (64-bit)): at AutomationTool.InternalUtils.SafeCopyFile(String SourceName, String TargetName, Boolean bQuiet, Boolean bFilterSpecialLinesFromIniFiles)
MainFrameActions: Packaging (Windows (64-bit)): InternalUtils.SafeCopyFile: WARNING: Failed to copy D:\pzea\Documents\Unreal Projects\mdotexe_4_10\Intermediate\Staging\mdotexe.exe to D:\pzea\Documents\Unreal Projects\mdotexe_4_10\Saved\StagedBuilds\WindowsNoEditor\mdotexe.exe, deleting, waiting 10s and retrying.

It keeps retrying this over and over until it gives up and packaging finally fails. Packaging was working fine in the same version of the editor just a few days ago. Now all of a sudden I’m getting this error and I’m not really sure what I can do to solve it.

I’ve tried a clean reinstall of the editor and my global default server game mode is not set to none.

Thank you

I was trying to package for windows 64bit and wasn’t able to. I just tried switching to Windows 32bit and it packaged successfully. Tried 64bit again after that and it failed again with the same error. So 32bit seems to work for now as a workaround for me.

Still strange since 64bit was working for me a few days ago on the same version of the editor.

I have the same error in 4.10 when packaging for 64bit. Works fine for 32bit.

This is the first time I have tried to build the project since moving from 4.9 to 4.10