PackagingResults:Error: Error Unknown Error

I’ve recently been working on a project that I’ve previously packaged for Mac, and when I attempt to package the project for Mac now I receive this message.
PackagingResults:Error: Error Unknown Error

It’s also worth noting that when I build lighting the Map Check states
WorldSettings_1 Maps need lighting rebuilt
Map check complete:1 Error(s), 0 warnings(s), took 45.399ms to complete.

*Output log*

LogPlatformFile: Not using cached read wrapper
LogInit:Display: RandInit(-1841140583) SRandInit(-1841138437).
LogTaskGraph: Started task graph with 4 named threads and 7 total threads with 1 sets of task threads.
LogStats: Stats thread started at 0.109881
LogInit: Version: 4.12.5-3039270+++UE4+Release-4.12
LogInit: API Version: 2992821
LogInit: Net Version: 3039270
LogDevObjectVersion: Number of dev versions registered: 13
LogDevObjectVersion:   Dev-Blueprints (B0D832E4-1F89-4F0D-ACCF-7EB736FD4AA2): 3
LogDevObjectVersion:   Dev-Build (E1C64328-A22C-4D53-A36C-8E866417BD8C): 0
LogDevObjectVersion:   Dev-Core (375EC13C-06E4-48FB-B500-84F0262A717E): 1
LogDevObjectVersion:   Dev-Editor (E4B068ED-F494-42E9-A231-DA0B2E46BB41): 2
LogDevObjectVersion:   Dev-Framework (CFFC743F-43B0-4480-9391-14DF171D2073): 6
LogDevObjectVersion:   Dev-Mobile (B02B49B5-BB20-44E9-A304-32B752E40360): 0
LogDevObjectVersion:   Dev-Networking (A4E4105C-59A1-49B5-A7C5-40C4547EDFEE): 0
LogDevObjectVersion:   Dev-Online (39C831C9-5AE6-47DC-9A44-9C173E1C8E7C): 0
LogDevObjectVersion:   Dev-Physics (78F01B33-EBEA-4F98-B9B4-84EACCB95AA2): 0
LogDevObjectVersion:   Dev-Platform (6631380F-2D4D-43E0-8009-CF276956A95A): 0
LogDevObjectVersion:   Dev-Rendering (12F88B9F-8875-4AFC-A67C-D90C383ABD29): 2
LogDevObjectVersion:   Dev-Sequencer (7B5AE74C-D270-4C10-A958-57980B212A5A): 0
LogDevObjectVersion:   Dev-VR (D7296918-1DD6-4BDD-9DE2-64A83CC13884): 0
LogInit: Compiled (64-bit): Jul  6 2016 09:20:23
LogInit: Compiled with Clang: 7.3.0 (clang-703.0.29)
LogInit: Build Configuration: Development
LogInit: Branch Name: ++UE4+Release-4.12
LogInit: Command line: 
LogInit: Base directory: /Users/Shared/UnrealEngine/4.12/Engine/Binaries/Mac/
LogInit: Installed Engine Build: 1
LogInit: Presizing for  8388607 objects, including 0 objects not considered by GC, pre-allocating 0 bytes for permanent pool.
LogInit: Object subsystem initialized
LogInit: Selected Device Profile: [Mac]
LogInit: Applying CVar settings loaded from the selected device profile: [Mac]
LogInit: Setting Device Profile CVar: [[r.AOScatterTileCulling:0]]
LogInit: Computer: Jacs-iMac.local
LogInit: : JacDavies
LogInit: CPU Page size=4096, Cores=4
LogInit: High frequency timer resolution =1000.000000 MHz
LogInit: Power Source: AC Power
LogInit: Memory total: Physical=16.0GB (16GB approx) Pagefile=0.0GB Virtual=16.0GB
LogTextLocalizationManager: No specific translations for ('en-GB') exist, so ('en') translations will be used.
LogRHI: Initializing OpenGL RHI
LogRHI:   GL_VENDOR: Intel Inc.
LogRHI:   GL_RENDERER: Intel Iris Pro OpenGL Engine
LogRHI:   GL_VERSION: 4.1 INTEL-10.6.33
LogRHI:   GL_SHADING_LANGUAGE_VERSION: 4.10
LogRHI: OpenGL Extensions:
LogRHI:   GL_ARB_blend_func_extended
LogRHI:   GL_ARB_draw_buffers_blend
LogRHI:   GL_ARB_draw_indirect
LogRHI:   GL_ARB_ES2_compatibility
LogRHI:   GL_ARB_explicit_attrib_location
LogRHI:   GL_ARB_gpu_shader_fp64
LogRHI:   GL_ARB_gpu_shader5
LogRHI:   GL_ARB_instanced_arrays
LogRHI:   GL_ARB_internalformat_query
LogRHI:   GL_ARB_occlusion_query2
LogRHI:   GL_ARB_sample_shading
LogRHI:   GL_ARB_sampler_objects
LogRHI:   GL_ARB_separate_shader_objects
LogRHI:   GL_ARB_shader_bit_encoding
LogRHI:   GL_ARB_shader_subroutine
LogRHI:   GL_ARB_shading_language_include
LogRHI:   GL_ARB_tessellation_shader
LogRHI:   GL_ARB_texture_buffer_object_rgb32
LogRHI:   GL_ARB_texture_cube_map_array
LogRHI:   GL_ARB_texture_gather
LogRHI:   GL_ARB_texture_query_lod
LogRHI:   GL_ARB_texture_rgb10_a2ui
LogRHI:   GL_ARB_texture_storage
LogRHI:   GL_ARB_texture_swizzle
LogRHI:   GL_ARB_timer_query
LogRHI:   GL_ARB_transform_feedback2
LogRHI:   GL_ARB_transform_feedback3
LogRHI:   GL_ARB_vertex_attrib_64bit
LogRHI:   GL_ARB_vertex_type_2_10_10_10_rev
LogRHI:   GL_ARB_viewport_array
LogRHI:   GL_EXT_debug_label
LogRHI:   GL_EXT_debug_marker
LogRHI:   GL_EXT_framebuffer_multisample_blit_scaled
LogRHI:   GL_EXT_texture_compression_s3tc
LogRHI:   GL_EXT_texture_filter_anisotropic
LogRHI:   GL_EXT_texture_sRGB_decode
LogRHI:   GL_APPLE_client_storage
LogRHI:   GL_APPLE_container_object_shareable
LogRHI:   GL_APPLE_flush_render
LogRHI:   GL_APPLE_object_purgeable
LogRHI:   GL_APPLE_rgb_422
LogRHI:   GL_APPLE_row_bytes
LogRHI:   GL_APPLE_texture_range
LogRHI:   GL_ATI_texture_mirror_once
LogRHI:   GL_NV_texture_barrier
LogRHI:   GL_MAX_TEXTURE_SIZE: 16384
LogRHI:   GL_MAX_CUBE_MAP_TEXTURE_SIZE: 16384
LogRHI:   GL_MAX_ARRAY_TEXTURE_LAYERS: 2048
LogRHI:   GL_MAX_3D_TEXTURE_SIZE: 2048
LogRHI:   GL_MAX_RENDERBUFFER_SIZE: 16384
LogRHI:   GL_MAX_TEXTURE_IMAGE_UNITS: 16
LogRHI:   GL_MAX_DRAW_BUFFERS: 8
LogRHI:   GL_MAX_COLOR_ATTACHMENTS: 8
LogRHI:   GL_MAX_SAMPLES: 8
LogRHI:   GL_MAX_COLOR_TEXTURE_SAMPLES: 8
LogRHI:   GL_MAX_DEPTH_TEXTURE_SAMPLES: 8
LogRHI:   GL_MAX_INTEGER_SAMPLES: 1
LogRHI:   GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: 80
LogRHI:   GL_MAX_VERTEX_ATTRIBS: 16
LogRHI:   GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 16
LogRHI: OpenGL MajorVersion = 4, MinorVersion = 1, ShaderPlatform = GLSL_150_MAC, FeatureLevel = SM4
LogShaderCompilers: Guid format shader working directory is 15 characters bigger than the processId version (../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Intermediate/Shaders/WorkingDirectory/1894/).
LogShaderCompilers: Cleaned the shader compiler working directory '../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Intermediate/Shaders/tmp/B25A60986E4BBE779A679A981B9B4202/'.
LogShaderCompilers:Display: Using Local Shader Compiler.
LogTemp:Display: Loaded TP AllDesktopTargetPlatform
LogTemp:Display: Loaded TP MacClientTargetPlatform
LogTemp:Display: Loaded TP MacNoEditorTargetPlatform
LogTemp:Display: Loaded TP MacServerTargetPlatform
LogTemp:Display: Loaded TP MacTargetPlatform
LogTemp:Display: Loaded TP Android_ASTCTargetPlatform
LogTemp:Display: Loaded TP Android_ATCTargetPlatform
LogTemp:Display: Loaded TP Android_DXTTargetPlatform
LogTemp:Display: Loaded TP Android_ETC1TargetPlatform
LogTemp:Display: Loaded TP Android_ETC2TargetPlatform
LogTemp:Display: Loaded TP Android_MultiTargetPlatform
LogTemp:Display: Loaded TP Android_PVRTCTargetPlatform
LogTemp:Display: Loaded TP AndroidTargetPlatform
LogTemp:Display: Loaded TP HTML5TargetPlatform
LogTemp:Display: Loaded TP IOSTargetPlatform
LogTemp:Display: Loaded TP TVOSTargetPlatform
LogTargetPlatformManager:Display: Building Assets For Mac
LogDerivedDataCache:Display:  Cache Size: 512 MB
LogDerivedDataCache: Loaded boot cache 0.07s 80MB /Users/JacDavies/Library/Application Support/Epic/UnrealEngine/4.12/DerivedDataCache/Boot.ddc.
LogDerivedDataCache:Display: Loaded Boot cache: /Users/JacDavies/Library/Application Support/Epic/UnrealEngine/4.12/DerivedDataCache/Boot.ddc
LogDerivedDataCache: FDerivedDataBackendGraph:  Pak pak cache file ../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/DerivedDataCache/DDC.ddp not found, will not use a pak cache.
LogDerivedDataCache: Unable to find inner node Pak for hierarchical cache Hierarchy.
LogDerivedDataCache: FDerivedDataBackendGraph:  CompressedPak pak cache file ../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/DerivedDataCache/Compressed.ddp not found, will not use a pak cache.
LogDerivedDataCache: Unable to find inner node CompressedPak for hierarchical cache Hierarchy.
LogDerivedDataCache:Display: Pak cache opened for reading ../../../Engine/DerivedDataCache/Compressed.ddp.
LogDerivedDataCache: Using Local data cache path /Users/JacDavies/Library/Application Support/Epic/UnrealEngine/Common/DerivedDataCache: Writable
LogInit: Selected Device Profile: [Mac]
LogContentStreaming: Texture pool size is 0.00 MB
LogMeshUtilities: No automatic mesh reduction module available
LogMeshUtilities: No automatic mesh merging module available
LogMeshUtilities: No distributed automatic mesh merging module available
LogAssetRegistry: FAssetRegistry took 0.0003 seconds to start up
LogPackageLocalizationCache: Processed 4 localized package path(s) for 2 prioritized culture(s) in 0.014557 seconds
LogUObjectArray: 29914 objects as part of root set at end of initial load.
LogUObjectAllocator: 6067304 out of 0 bytes used by permanent object pool.
LogUObjectArray: CloseDisregardForGC: 0/0 objects in disregard for GC pool
LogSlate: SlateFontCache - WITH_FREETYPE: 1, WITH_HARFBUZZ: 1
LogSlate: SlateFontCache - WITH_FREETYPE: 1, WITH_HARFBUZZ: 1
LogMoviePlayer: FAVMoviePlayer ctor...
LogUdpMessaging: Initializing bridge on interface 0.0.0.0:0 to multicast group 230.0.0.1:6666.
SourceControl: Info Source control is disabled
SourceControl: Info Source control is disabled
SourceControl: Info Source control is disabled
SourceControl: Info Source control is disabled
LogEngine: Initializing Engine...
LogAIModule: Creating AISystem for world NewWorld
LogInit: FAudioDevice initialized.
LogDerivedDataCache: Saved boot cache 0.67s 80MB /Users/JacDavies/Library/Application Support/Epic/UnrealEngine/4.12/DerivedDataCache/Boot.ddc.
LogInit: Texture streaming: Enabled
LogInit: Transaction tracking system initialized
BlueprintLog: New page: Editor Load
LocalizationService: Info Localization service is disabled
LogCook:Display:  memory allowance for cook 8192mb
LogCook:Display: Mobile HDR setting 1
LogFileCache: Scanning file cache for directory '/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Content/' took 0.00s
SourceControl: Info Source control is disabled
Cmd: MAP LOAD FILE="../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Content/Maps/Dinefwr_Peniarth.umap" TEMPLATE=0 SHOWPROGRESS=1 FEATURELEVEL=2
LightingResults: New page: Lighting Build
MapCheck: New page: Map Check
LightingResults: New page: Lighting Build
LogTexture:Display: Building textures: HQ_Lightmap0_17 (AutoDXT)
LogTexture:Display: Building textures: HQ_Lightmap0_7 (AutoDXT)
LogTexture:Display: Building textures: HQ_Lightmap0_8 (AutoDXT)
LogAIModule: Creating AISystem for world Dinefwr_Peniarth
LogPhysics:Warning: AddConvexElemsToRigidActor: [/Game/Static_mesh/Castle/Box_Brush51_StaticMesh.Box_Brush51_StaticMesh] ConvexElem[19] has negative scale. Not currently supported
LogPhysics:Warning: AddConvexElemsToRigidActor: [/Game/Static_mesh/Castle/Box_Brush51_StaticMesh.Box_Brush51_StaticMesh] ConvexElem[20] has negative scale. Not currently supported
LogPhysics:Warning: AddConvexElemsToRigidActor: [/Game/Static_mesh/Castle/Box_Brush51_StaticMesh.Box_Brush51_StaticMesh] ConvexElem[21] has negative scale. Not currently supported
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogSkinnedMeshComp:Warning: GetSocketByName(GripPoint): No SkeletalMesh for Mesh1P
LogEditorServer: Finished looking for orphan Actors (0.000 secs)
Cmd: MAP CHECKDEP NOCLEARLOG
MapCheck: Info Map check complete: 0 Error(s), 0 Warning(s), took 43.295ms to complete.
LogFileHelpers: Loading map 'Dinefwr_Peniarth' took 1.971
LogCollectionManager: Loaded 0 collections in 0.001026 seconds
LogFileCache: Scanning file cache for directory '/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/Collections/' took 0.00s
LogFileCache: Scanning file cache for directory '/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Content/Developers/JacDavies/Collections/' took 0.00s
LogFileCache: Scanning file cache for directory '/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Content/Collections/' took 0.00s
LogContentBrowser: Native class hierarchy populated in 0.0094 seconds. Added 2049 classes and 373 folders.
LogCollectionManager: Rebuilt the GUID cache for 0 collections in 0.000000 seconds
LogStats: UGameplayTagsManager::ConstructGameplayTagTree: Construct from data asset -  0.000 s
LogStats: UGameplayTagsManager::ConstructGameplayTagTree: GameplayTagTreeChangedEvent.Broadcast -  0.000 s
LogContentBrowser: Native class hierarchy updated for 'GameplayTags' in 0.0006 seconds. Added 12 classes and 0 folders.
LogContentBrowser: Native class hierarchy updated for 'WidgetCarousel' in 0.0004 seconds. Added 0 classes and 0 folders.
LogContentBrowser: Native class hierarchy updated for 'AddContentDialog' in 0.0005 seconds. Added 0 classes and 0 folders.
LogContentBrowser: Native class hierarchy updated for 'SceneOutliner' in 0.0004 seconds. Added 1 classes and 0 folders.
LogCrashTracker: Crashtracker disabled due to settings.
LogUObjectGlobals:Warning: Failed to find object 'Class None.'
LogContentBrowser: Native class hierarchy updated for 'HierarchicalLODOutliner' in 0.0005 seconds. Added 1 classes and 0 folders.
LogLoad: Full Startup: 14.75 seconds (BP compile: 0.07 seconds)
LogExternalProfiler: No external profilers were discovered.  External profiling features will not be available.
LogContentStreaming: Texture pool size now 1000 MB
LogRenderer: Reallocating scene render targets to support 1208x528 (Frame:2).
Cmd: UpdateLandscapeEditorData -warnings
LogAssetRegistry: Asset discovery search completed in 7.7808 seconds
LogCollectionManager: Rebuilt the object cache for 0 collections in 0.000000 seconds (found 0 objects)
LogCollectionManager: Fixed up redirectors for 0 collections in 0.000028 seconds (updated 0 objects)
LogSavePackage: Save=936.52ms
LogSavePackage: Moving '../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/UEDPCDinefwr_Peniarth4B7EE8F6CC40A9BF0DB78BA8F9FF2FD4.tmp' to '../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/Autosaves/Game/Maps/UEDPCDinefwr_Peniarth.umap'
LogSavePackage:Display: Finished SavePackage ../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/Autosaves/Game/Maps/UEDPCDinefwr_Peniarth.umap
LogEditorTransaction: Undo Spawn Play From Here Start
MainFrameActions: Packaging (Mac): Running AutomationTool...
MainFrameActions: Packaging (Mac): Setting up Mono
MainFrameActions: Packaging (Mac): Start UAT: mono AutomationTool.exe -ScriptsForProject=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject -cook -stage -archive -archivedire
ctory=/Users/JacDavies/Desktop -package -clientconfig=Development -ue4exe=UE4Editor -pak -prereqs -nodebuginfo -targetplatform=Mac -build -CrashReporter -utf8output
MainFrameActions: Packaging (Mac): Automation.ParseCommandLine: Parsing command line: -ScriptsForProject=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject -cook -stage -arch
ive -archivedirectory=/Users/JacDavies/Desktop -package -clientconfig=Development -ue4exe=UE4Editor -pak -prereqs -nodebuginfo -targetplatform=Mac -build -CrashReporter -utf8output
MainFrameActions: Packaging (Mac): Automation.Process: Setting up command environment.
MainFrameActions: Packaging (Mac): BuildCookRun.SetupParams: Setting up ProjectParams for /Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject
MainFrameActions: Packaging (Mac): Project.Build: ********** BUILD COMMAND STARTED **********
MainFrameActions: Packaging (Mac): CommandUtils.Run: Run: mono "/Users/Shared/UnrealEngine/4.12/Engine/Binaries/DotNET/UnrealBuildTool.exe" Dinefwr_Peniarth Mac Development -Project="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  "/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  -r
emoteini="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth" -noxge -generatemanifest -nocreatestub -NoHotReloadFromIDE
MainFrameActions: Packaging (Mac): mono: Compiling with non-standard Xcode (xcode-select): /Library/Developer/CommandLineTools/
MainFrameActions: Packaging (Mac): mono: Triggered an exception while looking for SDK directory in Xcode.app
MainFrameActions: Packaging (Mac): mono: System.IO.DirectoryNotFoundException: Directory '/Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs' not found.
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.ValidateDirectoryListing (System.String path, System.String searchPattern, System.Boolean& stop) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetFileSystemEntries (System.String path, System.String searchPattern, FileAttributes mask, FileAttributes attrs) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetDirectories (System.String path, System.String searchPattern) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetDirectories (System.String path) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at UnrealBuildTool.AppleToolChain.SelectSDK (System.String BaseSDKDir, System.String OSPrefix, System.String& PlatformSDKVersion, Boolean bVerbose) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono: ERROR: Invalid SDK MacOSX.sdk, not found in /Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs
MainFrameActions: Packaging (Mac): CommandUtils.Run: Run: Took 2.090436s to run mono, ExitCode=5
MainFrameActions: Packaging (Mac): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Command failed (Result:5): /Users/Shared/UnrealEngine/4.12/Engine/Binaries/DotNET/UnrealBuildTool.exe Dinefwr_Peniarth Mac Development -Project="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproj
ect"  "/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  -remoteini="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth" -noxge -generatemanifest -nocreatestub -NoHotReloadFromIDE. See logfile for details: 'UnrealBuildTool-2017.01.09-11.54.49.txt' 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunAndLog (System.String App, System.String CommandLine, System.String Logfile, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunAndLog (AutomationTool.CommandEnvironment Env, System.String App, System.String CommandLine, System.String LogName, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunUBT (AutomationTool.CommandEnvironment Env, System.String UBTExecutable, System.String CommandLine, System.String LogName, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunUBT (AutomationTool.CommandEnvironment Env, System.String UBTExecutable, UnrealBuildTool.FileReference Project, System.String Target, System.String Platform, System.String Config, System.String AdditionalArgs, System.String LogName, System.Collections.Generic.Dictionary`2 EnvVars) [0x0000
0] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.UE4Build.BuildWithUBT (System.String TargetName, UnrealTargetPlatform TargetPlatform, System.String Config, UnrealBuildTool.FileReference UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, System.String InAddArgs, Boolean Force
Unity, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.UE4Build.Build (AutomationTool.BuildAgenda Agenda, Nullable`1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InUseParallelExecutor, Boolean InForceNonUnity, Boolean InForceUnity, Boolean InShowProgress, System.Collections.Generic.Dictionary`2 PlatformEnvVars, Nullable`
1 InChangelistNumberOverride, System.Collections.Generic.Dictionary`2 InTargetToManifest) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at Project.Build (AutomationTool.BuildCommand Command, AutomationTool.ProjectParams Params, Int32 WorkingCL, ProjectBuildTargets TargetMask) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at BuildCookRun.DoBuildCookRun (AutomationTool.ProjectParams Params) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at BuildCookRun.ExecuteBuild () [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.BuildCommand.Execute () [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Automation.Execute (System.Collections.Generic.List`1 CommandsToExecute, Tools.DotNETCommon.CaselessDictionary.CaselessDictionary`1 Commands) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Automation.Process (System.String[] CommandLine) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Program.MainProc (System.Object Param) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.InternalUtils.RunSingleInstance (System.Func`2 Main, System.Object Param) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Program.Main () [0x00000] in :0 
MainFrameActions: Packaging (Mac): Program.Main: AutomationTool exiting with ExitCode=5 (5)
MainFrameActions: Packaging (Mac): Domain_ProcessExit
MainFrameActions: Packaging (Mac): RunUAT ERROR: AutomationTool was unable to run successfully.
PackagingResults:Error: Error Unknown Error
LogSavePackage: Save=673.33ms
LogSavePackage: Moving '../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/UEDPCDinefwr_PeniarthDDC382E7714669E89E5B8ABACAEDEF2F.tmp' to '../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/Autosaves/Game/Maps/UEDPCDinefwr_Peniarth.umap'
LogSavePackage:Display: Finished SavePackage ../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/Autosaves/Game/Maps/UEDPCDinefwr_Peniarth.umap
LogEditorTransaction: Undo Spawn Play From Here Start
MainFrameActions: Packaging (Mac): Running AutomationTool...
MainFrameActions: Packaging (Mac): Setting up Mono
MainFrameActions: Packaging (Mac): Start UAT: mono AutomationTool.exe -ScriptsForProject=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject -cook -stage -archive -archivedire
ctory=/Users/JacDavies/Desktop -package -clientconfig=Development -ue4exe=UE4Editor -pak -prereqs -nodebuginfo -targetplatform=Mac -build -CrashReporter -utf8output
MainFrameActions: Packaging (Mac): Automation.ParseCommandLine: Parsing command line: -ScriptsForProject=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject -cook -stage -arch
ive -archivedirectory=/Users/JacDavies/Desktop -package -clientconfig=Development -ue4exe=UE4Editor -pak -prereqs -nodebuginfo -targetplatform=Mac -build -CrashReporter -utf8output
MainFrameActions: Packaging (Mac): Automation.Process: Setting up command environment.
MainFrameActions: Packaging (Mac): BuildCookRun.SetupParams: Setting up ProjectParams for /Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject
MainFrameActions: Packaging (Mac): Project.Build: ********** BUILD COMMAND STARTED **********
MainFrameActions: Packaging (Mac): CommandUtils.Run: Run: mono "/Users/Shared/UnrealEngine/4.12/Engine/Binaries/DotNET/UnrealBuildTool.exe" Dinefwr_Peniarth Mac Development -Project="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  "/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  -r
emoteini="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth" -noxge -generatemanifest -nocreatestub -NoHotReloadFromIDE
MainFrameActions: Packaging (Mac): mono: Compiling with non-standard Xcode (xcode-select): /Library/Developer/CommandLineTools/
MainFrameActions: Packaging (Mac): mono: Triggered an exception while looking for SDK directory in Xcode.app
MainFrameActions: Packaging (Mac): mono: System.IO.DirectoryNotFoundException: Directory '/Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs' not found.
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.ValidateDirectoryListing (System.String path, System.String searchPattern, System.Boolean& stop) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetFileSystemEntries (System.String path, System.String searchPattern, FileAttributes mask, FileAttributes attrs) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetDirectories (System.String path, System.String searchPattern) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetDirectories (System.String path) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at UnrealBuildTool.AppleToolChain.SelectSDK (System.String BaseSDKDir, System.String OSPrefix, System.String& PlatformSDKVersion, Boolean bVerbose) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono: ERROR: Invalid SDK MacOSX.sdk, not found in /Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs
MainFrameActions: Packaging (Mac): CommandUtils.Run: Run: Took 2.078479s to run mono, ExitCode=5
MainFrameActions: Packaging (Mac): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Command failed (Result:5): /Users/Shared/UnrealEngine/4.12/Engine/Binaries/DotNET/UnrealBuildTool.exe Dinefwr_Peniarth Mac Development -Project="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproj
ect"  "/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  -remoteini="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth" -noxge -generatemanifest -nocreatestub -NoHotReloadFromIDE. See logfile for details: 'UnrealBuildTool-2017.01.09-11.59.12.txt' 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunAndLog (System.String App, System.String CommandLine, System.String Logfile, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunAndLog (AutomationTool.CommandEnvironment Env, System.String App, System.String CommandLine, System.String LogName, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunUBT (AutomationTool.CommandEnvironment Env, System.String UBTExecutable, System.String CommandLine, System.String LogName, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunUBT (AutomationTool.CommandEnvironment Env, System.String UBTExecutable, UnrealBuildTool.FileReference Project, System.String Target, System.String Platform, System.String Config, System.String AdditionalArgs, System.String LogName, System.Collections.Generic.Dictionary`2 EnvVars) [0x0000
0] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.UE4Build.BuildWithUBT (System.String TargetName, UnrealTargetPlatform TargetPlatform, System.String Config, UnrealBuildTool.FileReference UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, System.String InAddArgs, Boolean Force
Unity, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.UE4Build.Build (AutomationTool.BuildAgenda Agenda, Nullable`1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InUseParallelExecutor, Boolean InForceNonUnity, Boolean InForceUnity, Boolean InShowProgress, System.Collections.Generic.Dictionary`2 PlatformEnvVars, Nullable`
1 InChangelistNumberOverride, System.Collections.Generic.Dictionary`2 InTargetToManifest) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at Project.Build (AutomationTool.BuildCommand Command, AutomationTool.ProjectParams Params, Int32 WorkingCL, ProjectBuildTargets TargetMask) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at BuildCookRun.DoBuildCookRun (AutomationTool.ProjectParams Params) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at BuildCookRun.ExecuteBuild () [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.BuildCommand.Execute () [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Automation.Execute (System.Collections.Generic.List`1 CommandsToExecute, Tools.DotNETCommon.CaselessDictionary.CaselessDictionary`1 Commands) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Automation.Process (System.String[] CommandLine) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Program.MainProc (System.Object Param) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.InternalUtils.RunSingleInstance (System.Func`2 Main, System.Object Param) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Program.Main () [0x00000] in :0 
MainFrameActions: Packaging (Mac): Program.Main: AutomationTool exiting with ExitCode=5 (5)
MainFrameActions: Packaging (Mac): Domain_ProcessExit
MainFrameActions: Packaging (Mac): RunUAT ERROR: AutomationTool was unable to run successfully.
PackagingResults:Error: Error Unknown Error
LogSavePackage: Save=679.18ms
LogSavePackage: Moving '../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/UEDPCDinefwr_PeniarthD6C383A0074B4CF731A0B9BEA06892CB.tmp' to '../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/Autosaves/Game/Maps/UEDPCDinefwr_Peniarth.umap'
LogSavePackage:Display: Finished SavePackage ../../../../../../../Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Saved/Autosaves/Game/Maps/UEDPCDinefwr_Peniarth.umap
LogEditorTransaction: Undo Spawn Play From Here Start
MainFrameActions: Packaging (Mac): Running AutomationTool...
MainFrameActions: Packaging (Mac): Setting up Mono
MainFrameActions: Packaging (Mac): Start UAT: mono AutomationTool.exe -ScriptsForProject=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject -cook -stage -archive -archivedire
ctory=/Users/JacDavies/Desktop -package -clientconfig=Development -ue4exe=UE4Editor -pak -prereqs -nodebuginfo -targetplatform=Mac -build -CrashReporter -utf8output
MainFrameActions: Packaging (Mac): Automation.ParseCommandLine: Parsing command line: -ScriptsForProject=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject -cook -stage -arch
ive -archivedirectory=/Users/JacDavies/Desktop -package -clientconfig=Development -ue4exe=UE4Editor -pak -prereqs -nodebuginfo -targetplatform=Mac -build -CrashReporter -utf8output
MainFrameActions: Packaging (Mac): Automation.Process: Setting up command environment.
MainFrameActions: Packaging (Mac): BuildCookRun.SetupParams: Setting up ProjectParams for /Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject
MainFrameActions: Packaging (Mac): Project.Build: ********** BUILD COMMAND STARTED **********
MainFrameActions: Packaging (Mac): CommandUtils.Run: Run: mono "/Users/Shared/UnrealEngine/4.12/Engine/Binaries/DotNET/UnrealBuildTool.exe" Dinefwr_Peniarth Mac Development -Project="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  "/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  -r
emoteini="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth" -noxge -generatemanifest -nocreatestub -NoHotReloadFromIDE
MainFrameActions: Packaging (Mac): mono: Compiling with non-standard Xcode (xcode-select): /Library/Developer/CommandLineTools/
MainFrameActions: Packaging (Mac): mono: Triggered an exception while looking for SDK directory in Xcode.app
MainFrameActions: Packaging (Mac): mono: System.IO.DirectoryNotFoundException: Directory '/Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs' not found.
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.ValidateDirectoryListing (System.String path, System.String searchPattern, System.Boolean& stop) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetFileSystemEntries (System.String path, System.String searchPattern, FileAttributes mask, FileAttributes attrs) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetDirectories (System.String path, System.String searchPattern) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at System.IO.Directory.GetDirectories (System.String path) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono:   at UnrealBuildTool.AppleToolChain.SelectSDK (System.String BaseSDKDir, System.String OSPrefix, System.String& PlatformSDKVersion, Boolean bVerbose) [0x00000] in :0 
MainFrameActions: Packaging (Mac): mono: ERROR: Invalid SDK MacOSX.sdk, not found in /Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs
MainFrameActions: Packaging (Mac): CommandUtils.Run: Run: Took 2.151747s to run mono, ExitCode=5
MainFrameActions: Packaging (Mac): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Command failed (Result:5): /Users/Shared/UnrealEngine/4.12/Engine/Binaries/DotNET/UnrealBuildTool.exe Dinefwr_Peniarth Mac Development -Project="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproj
ect"  "/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth/Dinefwr_Peniarth.uproject"  -remoteini="/Volumes/JAC_DRIVE/Art Res/Unreal Dinefwr/Dinefwr_Peniarth" -noxge -generatemanifest -nocreatestub -NoHotReloadFromIDE. See logfile for details: 'UnrealBuildTool-2017.01.09-12.04.38.txt' 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunAndLog (System.String App, System.String CommandLine, System.String Logfile, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunAndLog (AutomationTool.CommandEnvironment Env, System.String App, System.String CommandLine, System.String LogName, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunUBT (AutomationTool.CommandEnvironment Env, System.String UBTExecutable, System.String CommandLine, System.String LogName, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.CommandUtils.RunUBT (AutomationTool.CommandEnvironment Env, System.String UBTExecutable, UnrealBuildTool.FileReference Project, System.String Target, System.String Platform, System.String Config, System.String AdditionalArgs, System.String LogName, System.Collections.Generic.Dictionary`2 EnvVars) [0x0000
0] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.UE4Build.BuildWithUBT (System.String TargetName, UnrealTargetPlatform TargetPlatform, System.String Config, UnrealBuildTool.FileReference UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, System.String InAddArgs, Boolean Force
Unity, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.UE4Build.Build (AutomationTool.BuildAgenda Agenda, Nullable`1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InUseParallelExecutor, Boolean InForceNonUnity, Boolean InForceUnity, Boolean InShowProgress, System.Collections.Generic.Dictionary`2 PlatformEnvVars, Nullable`
1 InChangelistNumberOverride, System.Collections.Generic.Dictionary`2 InTargetToManifest) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at Project.Build (AutomationTool.BuildCommand Command, AutomationTool.ProjectParams Params, Int32 WorkingCL, ProjectBuildTargets TargetMask) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at BuildCookRun.DoBuildCookRun (AutomationTool.ProjectParams Params) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at BuildCookRun.ExecuteBuild () [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.BuildCommand.Execute () [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Automation.Execute (System.Collections.Generic.List`1 CommandsToExecute, Tools.DotNETCommon.CaselessDictionary.CaselessDictionary`1 Commands) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Automation.Process (System.String[] CommandLine) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Program.MainProc (System.Object Param) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.InternalUtils.RunSingleInstance (System.Func`2 Main, System.Object Param) [0x00000] in :0 
MainFrameActions: Packaging (Mac):   at AutomationTool.Program.Main () [0x00000] in :0 
MainFrameActions: Packaging (Mac): Program.Main: AutomationTool exiting with ExitCode=5 (5)
MainFrameActions: Packaging (Mac): Domain_ProcessExit
MainFrameActions: Packaging (Mac): RunUAT ERROR: AutomationTool was unable to run successfully.
PackagingResults:Error: Error Unknown Error

JDavies,

You have an invalid SDK for your MacOSX. Make sure you’re using a proper version of XCode. If it’s a beta version, you might want to revert to an actual released version.

 MainFrameActions: Packaging (Mac): mono: ERROR: Invalid SDK MacOSX.sdk, not found in /Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs

Hey JDavies,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!