[2017.07.07-23.26.05:816][441]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:806][ 0]LogShaderCompilers:Warning: Failed to compile Material /Game/blessa/_null__005._null__005 for platform PCD3D_SM5, Default Material will be used in game.
[2017.07.07-23.26.05:816][441]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:806][ 0]LogShaderCompilers:Warning: Random.usf(222,40): err0r X3093: out of memory while parsing
[2017.07.07-23.26.05:816][441]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:807][ 0]LogShaderCompilers:Warning: (): out of memory during compilation
[2017.07.07-23.26.05:817][441]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:807][ 0]LogShaderCompilers:Warning: (): err0r X8000: D3D11 Internal Compiler Error: Invalid Bytecode: Failed to parse shader using reference shader parser: 0x8007000e
[2017.07.07-23.26.05:817][441]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:814][ 0]LogTemp:Display: Finished compile of shader map 0x000002D688B2E780
[2017.07.07-23.26.05:828][442]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:814][ 0]LogTemp:Display: Shader map _null__005 complete, GameThreadShaderMap 0x000002D688B2E780, marking material _null__005 as finished
[2017.07.07-23.26.05:828][442]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:815][ 0]LogTemp:Display: Marking material as finished 0x000002D62CDD1D80
[2017.07.07-23.26.05:829][442]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:818][ 0]LogCook:Display: Forcing save package C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Content/blessa/_null__004.uasset because was already requeued once
[2017.07.07-23.26.05:907][448]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:818][ 0]LogCook:Display: Cooking /Game/blessa/_null__004 → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/_null__004.uasset
[2017.07.07-23.26.05:908][448]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:894][ 0]LogSavePackage:Display: Finished SavePackage C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/_null__004.uasset
[2017.07.07-23.26.05:908][448]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:901][ 0]LogCook:Display: Forcing save package C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Content/blessa/Head_textures.uasset because was already requeued once
[2017.07.07-23.26.05:909][448]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:902][ 0]LogCook:Display: Cooking /Game/blessa/Head_textures → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/Head_textures.uasset
[2017.07.07-23.26.05:909][448]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:906][ 0]LogSavePackage:Display: Finished SavePackage C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/Head_textures.uasset
[2017.07.07-23.26.05:910][448]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:906][ 0]LogCook:Display: Forcing save package C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Content/blessa/_null__005.uasset because was already requeued once
[2017.07.07-23.26.05:990][454]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:907][ 0]LogCook:Display: Cooking /Game/blessa/_null__005 → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/_null__005.uasset
[2017.07.07-23.26.06:348][480]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.05:989][ 0]LogSavePackage:Display: Finished SavePackage C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/_null__005.uasset
[2017.07.07-23.26.06:515][492]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:339][ 0]LogCook:Display: Cooking /Game/blessa/Blessa_rigged → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/Blessa_rigged.uasset
[2017.07.07-23.26.06:516][492]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:513][ 0]LogSavePackage:Display: Finished SavePackage C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/Blessa_rigged.uasset
[2017.07.07-23.26.06:530][493]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:514][ 0]LogCook:Display: Cooking /Game/blessa/Blessa_rigged_PhysicsAsset → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/Blessa_rigged_PhysicsAsset.uasset
[2017.07.07-23.26.06:704][506]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:522][ 0]LogSavePackage:Display: Finished SavePackage C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/blessa/Blessa_rigged_PhysicsAsset.uasset
[2017.07.07-23.26.06:762][510]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:697][ 0]LogTemp:Display: Added material ShaderMap 0x000002D62C831980 with Material 0x000002D62C89A680 to ShaderMapsBeingCompiled
[2017.07.07-23.26.06:852][516]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:752][ 0]LogTemp:Display: Kicking off shader compilation for _null__006, GameThreadShaderMap 0x000002D62C831980
[2017.07.07-23.26.06:881][518]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:841][ 0]LogTemp:Display: Added material ShaderMap 0x000002D624042E80 with Material 0x000002D696597D00 to ShaderMapsBeingCompiled
[2017.07.07-23.26.07:609][561]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.06:881][ 0]LogTemp:Display: Kicking off shader compilation for _null__006, GameThreadShaderMap 0x000002D624042E80
[2017.07.07-23.26.07:683][565]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.07:601][ 0]LogTemp:Display: Added material ShaderMap 0x000002D62C144480 with Material 0x000002D69B267280 to ShaderMapsBeingCompiled
[2017.07.07-23.26.07:683][565]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.07:675][ 0]LogTemp:Display: Kicking off shader compilation for _null__004, GameThreadShaderMap 0x000002D62C144480
[2017.07.07-23.26.07:739][568]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.07:681][ 0]LogTemp:Display: Added material ShaderMap 0x000002D62CD5AE80 with Material 0x000002D62272B580 to ShaderMapsBeingCompiled
[2017.07.07-23.26.07:836][573]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.07:724][ 0]LogTemp:Display: Kicking off shader compilation for _null__004, GameThreadShaderMap 0x000002D62CD5AE80
[2017.07.07-23.26.07:916][577]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.07:824][ 0]LogTemp:Display: Added material ShaderMap 0x000002D691978480 with Material 0x000002D6A3C4FA00 to ShaderMapsBeingCompiled
[2017.07.07-23.26.08:067][585]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.07:910][ 0]LogTemp:Display: Kicking off shader compilation for _null__003, GameThreadShaderMap 0x000002D691978480
[2017.07.07-23.26.08:105][587]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:052][ 0]LogTemp:Display: Added material ShaderMap 0x000002D698706E80 with Material 0x000002D6235FCD00 to ShaderMapsBeingCompiled
[2017.07.07-23.26.08:390][602]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:095][ 0]LogTemp:Display: Kicking off shader compilation for _null__003, GameThreadShaderMap 0x000002D698706E80
[2017.07.07-23.26.08:467][606]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:375][ 0]LogTemp:Display: Added material ShaderMap 0x000002D69991C480 with Material 0x000002D657915C00 to ShaderMapsBeingCompiled
[2017.07.07-23.26.08:488][607]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:450][ 0]LogTemp:Display: Kicking off shader compilation for _null__002, GameThreadShaderMap 0x000002D69991C480
[2017.07.07-23.26.08:527][609]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:484][ 0]LogTemp:Display: Added material ShaderMap 0x000002D62D75EE80 with Material 0x000002D6575BA800 to ShaderMapsBeingCompiled
[2017.07.07-23.26.08:865][627]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:526][ 0]LogTemp:Display: Kicking off shader compilation for _null__002, GameThreadShaderMap 0x000002D62D75EE80
[2017.07.07-23.26.08:903][629]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:856][ 0]LogTemp:Display: Added material ShaderMap 0x000002D690DAD600 with Material 0x000002D665D63D00 to ShaderMapsBeingCompiled
[2017.07.07-23.26.09:135][641]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.08:899][ 0]LogTemp:Display: Kicking off shader compilation for null, GameThreadShaderMap 0x000002D690DAD600
[2017.07.07-23.26.09:173][643]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.09:124][ 0]LogCook:Display: Cooking /Game/armor/with_armor_Anim_Soarora_SoaroraAction → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/armor/with_armor_Anim_Soarora_SoaroraAction.uasset
[2017.07.07-23.26.10:356][697]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.09:168][ 0]LogSavePackage:Display: Finished SavePackage C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/armor/with_armor_Anim_Soarora_SoaroraAction.uasset
[2017.07.07-23.26.10:357][697]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.10:309][ 0]LogCook:Display: Forcing save package C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Content/armor/head_texture.uasset because was already requeued once
[2017.07.07-23.26.10:357][697]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.10:309][ 0]LogTexture:Display: Building textures: Textures (AutoDXT, 2048X2048) - 0 MB total VRAM
[2017.07.07-23.26.10:358][697]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.10:309][ 0]LogCook:Display: Cooking /Game/armor/head_texture → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/armor/head_texture.uasset
[2017.07.07-23.26.10:358][697]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.10:320][ 0]LogSavePackage:Display: Finished SavePackage C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/armor/head_texture.uasset
[2017.07.07-23.26.10:359][697]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.10:321][ 0]LogCook:Display: Forcing save package C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Content/armor/null.uasset because was already requeued once
[2017.07.07-23.27.06:945][599]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.07.07-23.26.10:322][ 0]LogCook:Display: Cooking /Game/armor/null → C:/Users/Spacer789/Documents/Unreal Projects/MyProject4 4.15/Saved/Cooked/WindowsNoEditor/MyProject4/Content/armor/null.uasset
[2017.07.07-23.27.08:913][746]UATHelper: Packaging (Windows (64-bit)): CommandUtils.Run: Run: Took 1371.9449239s to run UE4Editor-Cmd.exe, ExitCode=3
[2017.07.07-23.27.10:801][882]UATHelper: Packaging (Windows (64-bit)): Project.Cook: Cook failed. Deleting cooked data.
[2017.07.07-23.27.19:371][515]UATHelper: Packaging (Windows (64-bit)): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Cook failed. —> AutomationTool.AutomationException: BUILD FAILED: Failed while running Cook for C:\Users\Spacer789\Documents\Unreal Projects\MyProject4 4.15\MyProject4.uproject; see log C:\Users\Spacer789\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+(x86)+UE_4.15\Cook-2017.07.07-16.27.10.txt
[2017.07.07-23.27.19:372][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.CommandUtils.RunCommandlet(FileReference ProjectName, String UE4Exe, String Commandlet, String Parameters)
[2017.07.07-23.27.19:372][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.CommandUtils.CookCommandlet(FileReference ProjectName, String UE4Exe, String[] Maps, String[] Dirs, String InternationalizationPreset, String[] CulturesToCook, String TargetPlatform, String Parameters)
[2017.07.07-23.27.19:372][515]UATHelper: Packaging (Windows (64-bit)): at Project.Cook(ProjectParams Params)
[2017.07.07-23.27.19:372][515]UATHelper: Packaging (Windows (64-bit)): — End of inner exception stack trace —
[2017.07.07-23.27.19:373][515]UATHelper: Packaging (Windows (64-bit)): at Project.Cook(ProjectParams Params)
[2017.07.07-23.27.19:373][515]UATHelper: Packaging (Windows (64-bit)): at BuildCookRun.DoBuildCookRun(ProjectParams Params)
[2017.07.07-23.27.19:373][515]UATHelper: Packaging (Windows (64-bit)): at BuildCookRun.ExecuteBuild()
[2017.07.07-23.27.19:373][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.BuildCommand.Execute()
[2017.07.07-23.27.19:373][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary1 Commands)
[2017.07.07-23.27.19:373][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.Automation.Process(String[] Arguments)
[2017.07.07-23.27.19:374][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.Program.MainProc(Object Param)
[2017.07.07-23.27.19:374][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.InternalUtils.RunSingleInstance(Func`2 Main, Object Param)
[2017.07.07-23.27.19:374][515]UATHelper: Packaging (Windows (64-bit)): at AutomationTool.Program.Main()
[2017.07.07-23.27.19:689][538]UATHelper: Packaging (Windows (64-bit)): Program.Main: AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)
[2017.07.07-23.27.20:831][622]UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
[2017.07.07-23.27.21:048][626]PackagingResults:Error: Error Unknown Cook Failure
Same to me, Hope someone can fix this problem.