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Rocksmith Toolkit generate message error

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Hey guys and gals, I need some help.  This is my first time trying to make a CDLC and I'am facing a final problem. When I hit generate this message pops up:


Please Read This Important Message Completely…


Sequence Contains more than one matching element

Please send us the _RSToolkit_2020-07-25.log file if you need 

help.  Open log file now?

My log file:

2020-07-25 11:07:05.1589 | RocksmithToolkitGUI.Program (INFO) : 


  - RocksmithToolkitGUI: v2.9.2.1-5a8cb74e

  - RocksmithToolkitLib: v2.9.2.1-5a8cb74e [6/6/2020 1:54:42 AM]

  - RocksmithToolkitUpdater: v2.9.2.1-5a8cb74e

  - Dynamic Difficulty Creator: v3.6

  - OS: Microsoft Windows NT 10.0.18363.0 (64 bit)

  - .NET Framework Runtime: v4.0.30319.42000

  - CultureInfo: (en-US) 

  - Current Local DateTime: [7/25/2020 11:07:05 AM]

  - Current UTC DateTime: [7/25/2020 4:07:05 PM]

  - JIT: MsX86


  - MacOSX: False  

2020-07-25 11:07:06.3240 | RocksmithToolkitGUI.Program (INFO) : 


  - App.config Status (Load Successful)

  - System Display DPI Setting (96)

  - System Display Screen Scale Factor (100%)  

2020-07-25 11:09:48.1667 | RocksmithToolkitGUI.Program (ERROR) : 


  - Application.ThreadException

Source: System.Core

Target: TSource GetOneWithPossibleDefault[TSource](System.Linq.Parallel.QueryOperator`1[TSource], Boolean, Boolean)

System.InvalidOperationException: Sequence contains more than one matching element

   at System.Linq.ParallelEnumerable.GetOneWithPossibleDefault[TSource](QueryOperator`1 queryOp, Boolean throwIfTwo, Boolean defaultIfEmpty)

   at System.Linq.ParallelEnumerable.SingleOrDefault[TSource](ParallelQuery`1 source, Func`2 predicate)

   at RocksmithToolkitLib.Ogg.Wwise.GetWwisePath()

   at RocksmithToolkitGUI.DLCPackageCreator.DLCPackageCreator.btnPackageGenerate_Click(Object sender, EventArgs e)

   at System.Windows.Forms.Control.OnClick(EventArgs e)

   at System.Windows.Forms.Button.OnClick(EventArgs e)

   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)

   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

   at System.Windows.Forms.Control.WndProc(Message& m)

   at System.Windows.Forms.ButtonBase.WndProc(Message& m)

   at System.Windows.Forms.Button.WndProc(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Any type of help would be greatly appreciated :)


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Did you accidently tell it to read the same file twice, like did you add 2 guitar arrangements but they're pointing to the same file?


The error says it has 2 (or more) things that are exactly the same.

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