ERROR: Cook failed

Development Programming & Scripting Blueprint
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1

Hi,

I am trying to build my game but am getting the following:

ExceptionUtils.PrintExceptionInfo: ==============================================================================
ExceptionUtils.PrintExceptionInfo: ERROR: Cook failed.
ExceptionUtils.PrintExceptionInfo: (see C:\Users\Kieron\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.19\UAT_Log.txt for full exception trace)
ExceptionUtils.PrintExceptionInfo:
ExceptionUtils.PrintExceptionInfo: CommandletException: Editor terminated with exit code 1 while running Cook for C:\Users\Kieron\Documents\Unreal Projects\Dark Legends of Koyannis\LegendsofKoyannis.uproject; see log C:\Users\Kieron\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.19\Cook-2018.10.05-23.04.01.txt
ExceptionUtils.PrintExceptionInfo: at AutomationTool.CommandUtils.RunCommandlet(FileReference ProjectName, String UE4Exe, String Commandlet, String Parameters)
ExceptionUtils.PrintExceptionInfo: at AutomationTool.CommandUtils.CookCommandlet(FileReference ProjectName, String UE4Exe, String[] Maps, String[] Dirs, String InternationalizationPreset, String[] CulturesToCook, String TargetPlatform, String Parameters)
ExceptionUtils.PrintExceptionInfo: at Project.Cook(ProjectParams Params)
ExceptionUtils.PrintExceptionInfo: Wrapped by AutomationException: Cook failed.
ExceptionUtils.PrintExceptionInfo: at Project.Cook(ProjectParams Params)
ExceptionUtils.PrintExceptionInfo: at BuildCookRun.DoBuildCookRun(ProjectParams Params)
ExceptionUtils.PrintExceptionInfo: at BuildCookRun.ExecuteBuild()
ExceptionUtils.PrintExceptionInfo: at AutomationTool.BuildCommand.Execute()
ExceptionUtils.PrintExceptionInfo: at AutomationTool.Automation.Execute(List1 CommandsToExecute, Dictionary2 Commands)
ExceptionUtils.PrintExceptionInfo: at AutomationTool.Automation.Process(String[] Arguments)
ExceptionUtils.PrintExceptionInfo: at AutomationTool.Program.MainProc(Object Param)
ExceptionUtils.PrintExceptionInfo: at AutomationTool.InternalUtils.RunSingleInstance(Func`2 Main, Object Param)
ExceptionUtils.PrintExceptionInfo: at AutomationTool.Program.Main()
ExceptionUtils.PrintExceptionInfo: ==============================================================================
Program.Main: AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)

Is anyone able to assist?