Error while building for HTML5 using UFE (missing a .bc file)

Development Platform & Builds
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3

I tried to look what is missing and here is the thing:

30123-new+bitmap+image.jpg
30123-new+bitmap+image.jpg885×482 122 KB

there is no HTML5 folder, but why is that? can you give me any suggestions?
I tried to look at UE4_BuildThirdPartyLib and it was a short script:

REM ICU

	set ICU_DATA=%cd%\icu4c-51_2\source\data\out\build\

pushd icu4c-51_2\source\allinone

	p4 edit %THIRD_PARTY_CHANGELIST% ..\..\include\...
	p4 edit %THIRD_PARTY_CHANGELIST% ..\..\Win32\VS2012\bin\...
	p4 edit %THIRD_PARTY_CHANGELIST% ..\..\Win32\VS2012\lib\...
	p4 edit %THIRD_PARTY_CHANGELIST% ..\..\Win64\VS2012\bin\...
	p4 edit %THIRD_PARTY_CHANGELIST% ..\..\Win64\VS2012\lib\...

	REM vs2012
	REM msbuild allinone.sln /target:Clean,Build /p:Platform=Win32;Configuration="Release"
	REM msbuild allinone.sln /target:Clean,Build /p:Platform=Win32;Configuration="Debug"
	REM msbuild allinone.sln /target:Clean,Build /p:Platform=x64;Configuration="Release"
	REM msbuild allinone.sln /target:Clean,Build /p:Platform=x64;Configuration="Debug"

	REM Missing WinRT, XboxOne, PS4, Android, Linux, HTML5
popd

any ideas? pleaaaaaaaase???