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TSubclassOf causes packaging failure with HTML5

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    TSubclassOf causes packaging failure with HTML5

    Making a "Basic Code" C++ project and creating a class that has "TSubclassOf<UOtherClass> otherClass;" in it's header causes HTML5 packaging to fail.

    A.h
    Code:
    #pragma once
    
    #include "CoreMinimal.h"
    #include "UObject/NoExportTypes.h"
    #include "B.h"
    #include "A.generated.h"
    
    /**
     * 
     */
    UCLASS()
    class TSUBCLASSTEST_API UA : public UObject
    {
    	GENERATED_BODY()
    
    		TSubclassOf<UB> Bclass;
    	
    	
    };
    B.h
    Code:
    #pragma once
    
    #include "CoreMinimal.h"
    #include "UObject/NoExportTypes.h"
    #include "B.generated.h"
    
    /**
     * 
     */
    UCLASS()
    class TSUBCLASSTEST_API UB : public UObject
    {
    	GENERATED_BODY()
    	
    	
    	
    	
    };
    Packaging works fine for Win32, regular Visual Studio compilation works.
    HTML5 packaging error:
    Code:
    UATHelper: Packaging (HTML5): UnrealBuildTool: [2/3] python.exe A.cpp
    UATHelper: Packaging (HTML5): UnrealBuildTool: In file included from C:/Users/<User>/Projects/TSubclassTest/Source/TSubclassTest/A.cpp:3:
    UATHelper: Packaging (HTML5): UnrealBuildTool:   C:\Users\<User>\Projects\TSubclassTest\Source\TSubclassTest\A.h(18,25): error: implicit instantiation of undefined template 'TSubclassOf<UB>'
    UATHelper: Packaging (HTML5): UnrealBuildTool: ../../../../../Users/<User>/Projects/TSubclassTest/Source/TSubclassTest/A.h:18:25: error: implicit instantiation of undefined template 'TSubclassOf<UB>'
    UATHelper: Packaging (HTML5): UnrealBuildTool:                 TSubclassOf<class UB> Bclass;
    UATHelper: Packaging (HTML5): UnrealBuildTool:                                       ^
    UATHelper: Packaging (HTML5): UnrealBuildTool: Runtime/CoreUObject/Public/Templates/Casts.h:21:30: note: template is declared here
    UATHelper: Packaging (HTML5): UnrealBuildTool: template<class TClass> class TSubclassOf;
    UATHelper: Packaging (HTML5): UnrealBuildTool:                              ^
    Any ideas on how to fix this?

    #2
    save errors here packaging for iOS with xcode9 with 4.19preview4...Have you fixed this?

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