4.20.3 Immediately fails to package: System.ArgumentNullException: Value cannot be null

Cleaned up all the errors and warnings in my log but this happens right off the bat when I go to package.

I recently moved to a new computer and copied my project file over. I installed the same version of Visual Studio 2015 Update 3 and have all the components necessary.

I’ve deleted my derived data cache, intermediate and saved folders.

Running from a blueprint-only project straight from the EPIC launcher. Packing worked not too long ago but I can’t recall what version.

Looks like this specific problem has been cropping up in other 4.20 packaging attempts I’ve seen but only as a question in a couple of places, couldn’t find any discussion on it:

<>c.b__4_0: ERROR: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. —> System.ArgumentNullException: Value cannot be null.

Full log:

Automation.ParseCommandLine: Parsing command line: -ScriptsForProject=“C:/Users/user/Documents/Unreal Projects/TheFreeLands 4.20/TheFeyLands.uproject” BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=“C:/Users/user/Documents/Unreal Projects/TheFreeLands 4.20/TheFeyLands.uproject” -cook -stage -archive -archivedirectory=C:/Users/user/Documents/Unreal/Exports/TestExportAlpha6 -package -clientconfig=Development -ue4exe=UE4Editor-Cmd.exe -clean -compressed -pak -prereqs -nodebuginfo -targetplatform=Win64 -build -utf8output
Automation.Process: Setting up command environment.
InternalUtils.SafeFileExists: SafeFileExists C:\Program Files\Epic Games\UE_4.20\Engine\Binaries\DotNET\AutomationTool.exe=True
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_LOCAL_ROOT=
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_LOCAL_ROOT=
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_EngineSavedFolder=
CommandUtils.SetEnvVar: SetEnvVar uebp_EngineSavedFolder=C:/Program Files/Epic Games/UE_4.20/Engine/Programs/AutomationTool/Saved
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_EngineSavedFolder=C:/Program Files/Epic Games/UE_4.20/Engine/Programs/AutomationTool/Saved
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_CSVFile=
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_LogFolder=
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_LOCAL_ROOT=C:/Program Files/Epic Games/UE_4.20
CommandUtils.SetEnvVar: SetEnvVar uebp_LogFolder=C:/Users/user/AppData/Roaming/Unreal Engine/AutomationTool/Logs/C+Program+Files+Epic+Games+UE_4.20
InternalUtils.SafeDeleteFile: SafeDeleteFile C:\Users\user\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.20\Log.txt
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_FinalLogFolder=
CommandUtils.SetEnvVar: SetEnvVar uebp_FinalLogFolder=C:/Users/user/AppData/Roaming/Unreal Engine/AutomationTool/Logs/C+Program+Files+Epic+Games+UE_4.20
InternalUtils.SafeFileExists: SafeFileExists C:\WINDOWS\system32\robocopy.exe=True
InternalUtils.SafeFileExists: SafeFileExists C:\WINDOWS\system32\mount.exe=False
InternalUtils.SafeFileExists: SafeFileExists C:\WINDOWS\Sysnative\mount.exe=False
InternalUtils.SafeFileExists: SafeFileExists C:\WINDOWS\system32\cmd.exe=True
CommandUtils.SetEnvVar: SetEnvVar MallocNanoZone=0
InternalUtils.GetEnvironmentVariable: GetEnvironmentVariable uebp_UATChildInstance=0
InternalUtils.SafeDeleteFile: SafeDeleteFile C:\Users\user\AppData\Local\Temp\UAT\C+Program+Files+Epic+Games+UE_4.20\Rules\UATRules1750363209.dll
InternalUtils.SafeDeleteFile: SafeDeleteFile C:\Users\user\AppData\Local\Temp\UAT\C+Program+Files+Epic+Games+UE_4.20\Rules\UATRules1750363209.pdb
InternalUtils.SafeDeleteFile: SafeDeleteFile C:\Users\user\AppData\Local\Temp\UAT\C+Program+Files+Epic+Games+UE_4.20\Rules\UATRules1750363209SourceFiles.txt
InternalUtils.SafeFileExists: SafeFileExists C:\Users\user\Documents\Unreal Projects\TheFreeLands 4.20\TheFeyLands.uproject=True
InternalUtils.SafeFileExists: SafeFileExists C:\Users\user\Documents\Unreal Projects\TheFreeLands 4.20\TheFeyLands.uproject=True
BuildCookRun.SetupParams: Setting up ProjectParams for C:\Users\user\Documents\Unreal Projects\TheFreeLands 4.20\TheFeyLands.uproject
InternalUtils.SafeFileExists: SafeFileExists C:\Users\user\AppData\Local\Temp\UAT\C+Program+Files+Epic+Games+UE_4.20\Rules\UATRules1750363209.dll=False
<>c.b__4_1: ==============================================================================
<>c.b__4_0: ERROR: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. —> System.ArgumentNullException: Value cannot be null.
<>c.b__4_0: Parameter name: source
<>c.b__4_0: at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable1 source, Func2 selector)
<>c.b__4_0: at UnrealBuildTool.TargetRules.FormatHexBytes(Byte[] Data) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Configuration\TargetRules.cs:line 1255
<>c.b__4_0: at UnrealBuildTool.TargetRules…ctor(TargetInfo Target) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Configuration\TargetRules.cs:line 1231
<>c.b__4_0: at TheFeyLandsTarget…ctor(TargetInfo Target) in c:\Users\user\Documents\Unreal Projects\TheFreeLands 4.20\Intermediate\Source\TheFeyLands.Target.cs:line 7
<>c.b__4_0: — End of inner exception stack trace —
<>c.b__4_0: at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
<>c.b__4_0: at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
<>c.b__4_0: at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark)
<>c.b__4_0: at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
<>c.b__4_0: at System.Activator.CreateInstance(Type type, Object[] args)
<>c.b__4_0: at AutomationTool.ProjectUtils.CompileAndLoadTargetsAssembly(ProjectProperties Properties, FileReference TargetsDllFilename, Boolean DoNotCompile, List1 TargetScripts) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 570 <>c.b__4_0: at AutomationTool.ProjectUtils.DetectTargetsForProject(ProjectProperties Properties, List1 ExtraSearchPaths) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 533
<>c.b__4_0: at AutomationTool.ProjectUtils.DetectProjectProperties(FileReference RawProjectPath, List1 ClientTargetPlatforms, List1 ClientTargetConfigurations, Boolean AssetNativizationRequested) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 348
<>c.b__4_0: at AutomationTool.ProjectUtils.GetProjectProperties(FileReference RawProjectPath, List1 ClientTargetPlatforms, List1 ClientTargetConfigurations, Boolean AssetNativizationRequested) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 99
<>c.b__4_0: at AutomationTool.ProjectParams.AutodetectSettings(Boolean bReset) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectParams.cs:line 1944
<>c.b__4_0: at AutomationTool.ProjectParams…ctor(FileReference RawProjectPath, BuildCommand Command, String Device, String MapToRun, String AdditionalServerMapParams, ParamList1 Port, String RunCommandline, String StageCommandline, String BundleName, String StageDirectoryParam, String UE4Exe, String SignPak, List1 ClientConfigsToBuild, List1 ServerConfigsToBuild, ParamList1 MapsToCook, ParamList1 MapIniSectionsToCook, ParamList1 DirectoriesToCook, String InternationalizationPreset, ParamList1 CulturesToCook, ParamList1 ClientCookedTargets, ParamList1 EditorTargets, ParamList1 ServerCookedTargets, List1 ClientTargetPlatforms, Dictionary2 ClientDependentPlatformMap, List1 ServerTargetPlatforms, Dictionary2 ServerDependentPlatformMap, Nullable1 Build, Nullable1 SkipBuildClient, Nullable1 SkipBuildEditor, Nullable1 Cook, Nullable1 Run, Nullable1 SkipServer, Nullable1 Clean, Nullable1 Compressed, String AdditionalPakOptions, Nullable1 UseDebugParamForEditorExe, Nullable1 IterativeCooking, String IterateSharedCookedBuild, Nullable1 IterateSharedBuildUsePrecompiledExe, Nullable1 CookAll, Nullable1 CookPartialGC, Nullable1 CookInEditor, String CookOutputDir, Nullable1 CookMapsOnly, Nullable1 CookOnTheFly, Nullable1 CookOnTheFlyStreaming, Nullable1 UnversionedCookedContent, Nullable1 EncryptIniFiles, Nullable1 EncryptPakIndex, Nullable1 EncryptEverything, Nullable1 SkipCookingEditorContent, Nullable1 NumCookersToSpawn, String AdditionalCookerOptions, String BasedOnReleaseVersion, String CreateReleaseVersion, String CreateReleaseVersionBasePath, String BasedOnReleaseVersionBasePath, Nullable1 GeneratePatch, Nullable1 AddPatchLevel, Nullable1 StageBaseReleasePaks, Nullable1 GenerateRemaster, String DiscVersion, String DLCName, String DiffCookedContentPath, Nullable1 DLCIncludeEngineContent, Nullable1 DLCPakPluginFile, Nullable1 DLCActLikePatch, Nullable1 CrashReporter, Nullable1 DedicatedServer, Nullable1 Client, Nullable1 Deploy, String DeployFolder, String GetFile, Nullable1 FileServer, Nullable1 Foreign, Nullable1 ForeignCode, Nullable1 LogWindow, Nullable1 NoCleanStage, Nullable1 NoClient, Nullable1 NoDebugInfo, Nullable1 SeparateDebugInfo, Nullable1 MapFile, Nullable1 NoXGE, Nullable1 Package, Nullable1 Pak, Nullable1 Prereqs, String AppLocalDirectory, Nullable1 NoBootstrapExe, Nullable1 SignedPak, Nullable1 NullRHI, Nullable1 FakeClient, Nullable1 EditorTest, Nullable1 RunAutomationTests, String RunAutomationTest, Nullable1 CrashIndex, Nullable1 SkipCook, Nullable1 SkipCookOnTheFly, Nullable1 SkipPak, Nullable1 PrePak, Nullable1 SkipStage, Nullable1 Stage, Nullable1 Manifests, Nullable1 CreateChunkInstall, Nullable1 Unattended, Nullable1 NumClients, Nullable1 Archive, String ArchiveDirectoryParam, Nullable1 ArchiveMetaData, Nullable1 CreateAppBundle, ParamList1 ProgramTargets, Nullable1 Distribution, Nullable1 Prebuilt, Nullable1 RunTimeoutSeconds, String SpecifiedArchitecture, String UbtArgs, Nullable1 IterativeDeploy, Nullable1 FastCook, Nullable1 IgnoreCookErrors, Nullable1 RunAssetNativization, Nullable1 CodeSign, Nullable1 TreatNonShippingBinariesAsDebugFiles, Nullable1 UseExtraFlavor, String Provision, String Certificate, String Team, Boolean AutomaticSigning, ParamList1 InMapsToRebuildLightMaps, ParamList1 InMapsToRebuildHLOD, ParamList1 TitleID) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectParams.cs:line 1019 <>c.b__4_0: at BuildCookRun.SetupParams() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 52 <>c.b__4_0: at BuildCookRun.ExecuteBuild() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 39 <>c.b__4_0: at AutomationTool.BuildCommand.Execute() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\BuildCommand.cs:line 112 <>c.b__4_0: at AutomationTool.Automation.Execute(List1 CommandsToExecute, Dictionary2 Commands) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 562 <>c.b__4_0: at AutomationTool.Automation.Process(String[] Arguments, StartupTraceListener StartupListener) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 532 <>c.b__4_0: at AutomationTool.Program.MainProc(String[] Arguments, StartupTraceListener StartupListener) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Program.cs:line 174 <>c.b__4_0: at AutomationTool.Program.<>c__DisplayClass1_0.b__0() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Program.cs:line 100 <>c.b__4_0: at AutomationTool.InternalUtils.RunSingleInstance(Func1 Main) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\Utils.cs:line 725
<>c.b__4_0: at AutomationTool.Program.Main() in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Program.cs:line 100
<>c.b__4_0: (see C:\Users\user\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.20\Log.txt for full exception trace)
<>c.b__4_1:
<>c.b__4_1: ArgumentNullException: Value cannot be null.
<>c.b__4_1: Parameter name: source
<>c.b__4_1: at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable1 source, Func2 selector)
<>c.b__4_1: at UnrealBuildTool.TargetRules.FormatHexBytes(Byte[] Data) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Configuration\TargetRules.cs:line 1255
<>c.b__4_1: at UnrealBuildTool.TargetRules…ctor(TargetInfo Target) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Configuration\TargetRules.cs:line 1231
<>c.b__4_1: at TheFeyLandsTarget…ctor(TargetInfo Target) in c:\Users\user\Documents\Unreal Projects\TheFreeLands 4.20\Intermediate\Source\TheFeyLands.Target.cs:line 7
<>c.b__4_1: Wrapped by TargetInvocationException: Exception has been thrown by the target of an invocation.
<>c.b__4_1: at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
<>c.b__4_1: at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
<>c.b__4_1: at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark)
<>c.b__4_1: at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
<>c.b__4_1: at System.Activator.CreateInstance(Type type, Object[] args)
<>c.b__4_1: at AutomationTool.ProjectUtils.CompileAndLoadTargetsAssembly(ProjectProperties Properties, FileReference TargetsDllFilename, Boolean DoNotCompile, List1 TargetScripts) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 570 <>c.b__4_1: at AutomationTool.ProjectUtils.DetectTargetsForProject(ProjectProperties Properties, List1 ExtraSearchPaths) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 533
<>c.b__4_1: at AutomationTool.ProjectUtils.DetectProjectProperties(FileReference RawProjectPath, List1 ClientTargetPlatforms, List1 ClientTargetConfigurations, Boolean AssetNativizationRequested) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 348
<>c.b__4_1: at AutomationTool.ProjectUtils.GetProjectProperties(FileReference RawProjectPath, List1 ClientTargetPlatforms, List1 ClientTargetConfigurations, Boolean AssetNativizationRequested) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectUtils.cs:line 99
<>c.b__4_1: at AutomationTool.ProjectParams.AutodetectSettings(Boolean bReset) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectParams.cs:line 1944
<>c.b__4_1: at AutomationTool.ProjectParams…ctor(FileReference RawProjectPath, BuildCommand Command, String Device, String MapToRun, String AdditionalServerMapParams, ParamList1 Port, String RunCommandline, String StageCommandline, String BundleName, String StageDirectoryParam, String UE4Exe, String SignPak, List1 ClientConfigsToBuild, List1 ServerConfigsToBuild, ParamList1 MapsToCook, ParamList1 MapIniSectionsToCook, ParamList1 DirectoriesToCook, String InternationalizationPreset, ParamList1 CulturesToCook, ParamList1 ClientCookedTargets, ParamList1 EditorTargets, ParamList1 ServerCookedTargets, List1 ClientTargetPlatforms, Dictionary2 ClientDependentPlatformMap, List1 ServerTargetPlatforms, Dictionary2 ServerDependentPlatformMap, Nullable1 Build, Nullable1 SkipBuildClient, Nullable1 SkipBuildEditor, Nullable1 Cook, Nullable1 Run, Nullable1 SkipServer, Nullable1 Clean, Nullable1 Compressed, String AdditionalPakOptions, Nullable1 UseDebugParamForEditorExe, Nullable1 IterativeCooking, String IterateSharedCookedBuild, Nullable1 IterateSharedBuildUsePrecompiledExe, Nullable1 CookAll, Nullable1 CookPartialGC, Nullable1 CookInEditor, String CookOutputDir, Nullable1 CookMapsOnly, Nullable1 CookOnTheFly, Nullable1 CookOnTheFlyStreaming, Nullable1 UnversionedCookedContent, Nullable1 EncryptIniFiles, Nullable1 EncryptPakIndex, Nullable1 EncryptEverything, Nullable1 SkipCookingEditorContent, Nullable1 NumCookersToSpawn, String AdditionalCookerOptions, String BasedOnReleaseVersion, String CreateReleaseVersion, String CreateReleaseVersionBasePath, String BasedOnReleaseVersionBasePath, Nullable1 GeneratePatch, Nullable1 AddPatchLevel, Nullable1 StageBaseReleasePaks, Nullable1 GenerateRemaster, String DiscVersion, String DLCName, String DiffCookedContentPath, Nullable1 DLCIncludeEngineContent, Nullable1 DLCPakPluginFile, Nullable1 DLCActLikePatch, Nullable1 CrashReporter, Nullable1 DedicatedServer, Nullable1 Client, Nullable1 Deploy, String DeployFolder, String GetFile, Nullable1 FileServer, Nullable1 Foreign, Nullable1 ForeignCode, Nullable1 LogWindow, Nullable1 NoCleanStage, Nullable1 NoClient, Nullable1 NoDebugInfo, Nullable1 SeparateDebugInfo, Nullable1 MapFile, Nullable1 NoXGE, Nullable1 Package, Nullable1 Pak, Nullable1 Prereqs, String AppLocalDirectory, Nullable1 NoBootstrapExe, Nullable1 SignedPak, Nullable1 NullRHI, Nullable1 FakeClient, Nullable1 EditorTest, Nullable1 RunAutomationTests, String RunAutomationTest, Nullable1 CrashIndex, Nullable1 SkipCook, Nullable1 SkipCookOnTheFly, Nullable1 SkipPak, Nullable1 PrePak, Nullable1 SkipStage, Nullable1 Stage, Nullable1 Manifests, Nullable1 CreateChunkInstall, Nullable1 Unattended, Nullable1 NumClients, Nullable1 Archive, String ArchiveDirectoryParam, Nullable1 ArchiveMetaData, Nullable1 CreateAppBundle, ParamList1 ProgramTargets, Nullable1 Distribution, Nullable1 Prebuilt, Nullable1 RunTimeoutSeconds, String SpecifiedArchitecture, String UbtArgs, Nullable1 IterativeDeploy, Nullable1 FastCook, Nullable1 IgnoreCookErrors, Nullable1 RunAssetNativization, Nullable1 CodeSign, Nullable1 TreatNonShippingBinariesAsDebugFiles, Nullable1 UseExtraFlavor, String Provision, String Certificate, String Team, Boolean AutomaticSigning, ParamList1 InMapsToRebuildLightMaps, ParamList1 InMapsToRebuildHLOD, ParamList1 TitleID) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\ProjectParams.cs:line 1019 <>c.b__4_1: at BuildCookRun.SetupParams() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 52 <>c.b__4_1: at BuildCookRun.ExecuteBuild() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Scripts\BuildCookRun.Automation.cs:line 39 <>c.b__4_1: at AutomationTool.BuildCommand.Execute() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\BuildCommand.cs:line 112 <>c.b__4_1: at AutomationTool.Automation.Execute(List1 CommandsToExecute, Dictionary2 Commands) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 562 <>c.b__4_1: at AutomationTool.Automation.Process(String[] Arguments, StartupTraceListener StartupListener) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\Automation.cs:line 532 <>c.b__4_1: at AutomationTool.Program.MainProc(String[] Arguments, StartupTraceListener StartupListener) in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Program.cs:line 174 <>c.b__4_1: at AutomationTool.Program.<>c__DisplayClass1_0.b__0() in D:\Build\++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Program.cs:line 100 <>c.b__4_1: at AutomationTool.InternalUtils.RunSingleInstance(Func1 Main) in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\Utils.cs:line 725
<>c.b__4_1: at AutomationTool.Program.Main() in D:\Build++UE4\Sync\Saved\CsTools\Engine\Source\Programs\AutomationTool\Program.cs:line 100
<>c.b__4_1: ==============================================================================
Program.Main: AutomationTool exiting with ExitCode=1 (Error_Unknown)

FIXED!

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