Glue Exception

gistfile1.txt

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A plugin has had an error.
Shutting down the plugin Global ContentManager Helper Plugin version 1.0 at file location
C:\code\FlatRedBall\FlatRedBall\FRBDK\Glue\Glue\bin\x86\Debug\netcoreapp3.0\Plugins\OfficialPlugins\OfficialPluginsCore.dll

Additional information:

System.ArgumentException: Cannot check if a null file name is relative.

   at FlatRedBall.IO.FileManager.IsRelative(String fileName) in C:\code\FlatRedBall\FlatRedBall\Engines\FlatRedBallXNA\FlatRedBall\IO\FileManager.cs:line 1082

   at FlatRedBall.Glue.Plugins.ExportedImplementations.CommandInterfaces.GluxCommands.AddReferencedFileToGlobalContent(String fileToAdd, Boolean useFullPathAsName) in C:\code\FlatRedBall\FlatRedBall\FRBDK\Glue\Glue\Plugins\ExportedImplementations\CommandInterfaces\GluxCommands.cs:line 221

   at FlatRedBall.Glue.Plugins.ExportedImplementations.CommandInterfaces.GluxCommands.CreateReferencedFileSaveForExistingFile(IElement containerForFile, String directoryInsideContainer, String absoluteFileName, PromptHandleEnum unknownTypeHandle, AssetTypeInfo ati, String& creationReport, String& errorMessage) in C:\code\FlatRedBall\FlatRedBall\FRBDK\Glue\Glue\Plugins\ExportedImplementations\CommandInterfaces\GluxCommands.cs:line 506

   at FlatRedBall.Glue.Plugins.ExportedImplementations.CommandInterfaces.GluxCommands.AddSingleFileTo(String fileName, String rfsName, String extraCommandLineArguments, BuildToolAssociation buildToolAssociation, Boolean isBuiltFile, Object options, IElement sourceElement, String directoryOfTreeNode) in C:\code\FlatRedBall\FlatRedBall\FRBDK\Glue\Glue\Plugins\ExportedImplementations\CommandInterfaces\GluxCommands.cs:line 344

   at FlatRedBall.Glue.Managers.AddExistingFileManager.AddSingleFile(String fileName, Boolean& userCancelled, IElement element, String directoryOfTreeNode, Object options) in C:\code\FlatRedBall\FlatRedBall\FRBDK\Glue\Glue\Managers\AddExistingFileManager.cs:line 122

   at FlatRedBall.Glue.Managers.AddExistingFileManager.<>c__DisplayClass0_1.<AddExistingFileClick>b__0() in C:\code\FlatRedBall\FlatRedBall\FRBDK\Glue\Glue\Managers\AddExistingFileManager.cs:line 43

   at FlatRedBall.Glue.Managers.TaskManager.<>c__DisplayClass32_0.<ProcessNextSync>b__0(Object <p0>) in C:\code\FlatRedBall\FlatRedBall\FRBDK\Glue\Glue\Tasks\TaskManager.cs:line 374

   at System.Threading.QueueUserWorkItemCallback.<>c.<.cctor>b__6_0(QueueUserWorkItemCallback quwi)

   at System.Threading.ExecutionContext.RunForThreadPoolUnsafe[TState](ExecutionContext executionContext, Action`1 callback, TState& state)

   at System.Threading.QueueUserWorkItemCallback.Execute()

   at System.Threading.ThreadPoolWorkQueue.Dispatch()

   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
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OK   
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