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**Category:** Platform & Builds\
**Tags:** error, error-building, HTML5, unreal-engine, question\
**Created:** [December 16, 2015, 2:26pm UTC](https://forums.unrealengine.com/t/html5-packaging-giving-an-error/341620 "2015-12-16T14:26:35Z")\
**Posts on this page:** 5\
**Page:** 1
**Author:**  [@ZirMurk](https://forums.unrealengine.com/u/ZirMurk)\
**Post date:** [December 16, 2015, 2:26pm UTC](https://forums.unrealengine.com/t/html5-packaging-giving-an-error/341620/1 "2015-12-16T14:26:35Z")
Hi there, I’m currently working on a project. First time in UE4 as well, and I like it.
One thing is keeping me from finishing this project (_project includes the VaQuoleUI plugin_); I am getting an error while cooking and packaging the project for HTML5. After a couple of minutes the log tells me there is an error executing the UnrealAutomationTool (_failed to execute_), and an error regarding the LLVM binaries.
I’ve tried UnrealFrontend, Cook by the book, and I’ve tried to export a standard First Person template (_succesfull_)
If there is anyone who has an idea what to do, I would love to hear it.
Thanks in advance!
**Update** : The error only occurs when I try to build the HTML5 project an empty C++ class in it. Visual Studio 2013 is installed. The building is going well, but the cooking is failing. RunUAT.bat is causing a problem here
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**Author:**  [@Tim\_Hobson](https://forums.unrealengine.com/u/Tim_Hobson)\
**Post date:** [December 16, 2015, 10:31pm UTC](https://forums.unrealengine.com/t/html5-packaging-giving-an-error/341620/2 "2015-12-16T22:31:01Z")
HI ZirMurk,
I’ve just packaged on a 4.10 build of the engine with a blank C++ class without any issue. If you’re able to reproduce the issue without the plugin in a blank project on a later build of the engine I can look into this further.
There have been many changes to HTML5 and the engine over the last year or more since 4.6 was released. If you’re able to update your project to the latest release and you have any errors that is something that we can possibly help with.
Thank you!
Tim
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**Author:**  [@ZirMurk](https://forums.unrealengine.com/u/ZirMurk)\
**Post date:** [December 17, 2015, 1:37pm UTC](https://forums.unrealengine.com/t/html5-packaging-giving-an-error/341620/3 "2015-12-17T13:37:51Z")
Hi Tim,
Thanks for trying that out, I’ll update the engine to a later version, check if the plugin is still compatible with it and try it again. If it is not working I may have to use the WebWidget in UE4.10
Thank you!
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**Author:**  [@ZirMurk](https://forums.unrealengine.com/u/ZirMurk)\
**Post date:** [December 21, 2015, 3:33pm UTC](https://forums.unrealengine.com/t/html5-packaging-giving-an-error/341620/4 "2015-12-21T15:33:52Z")
So, I got the Web Widget to work in the editor, but I can’t get it to display on a piece of geometry (have to fiddle around with that). Apart from that, is it possible to export the WebWidget to an HTML5 build?
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**Author:**  [@Tim\_Hobson](https://forums.unrealengine.com/u/Tim_Hobson)\
**Post date:** [December 29, 2015, 4:30pm UTC](https://forums.unrealengine.com/t/html5-packaging-giving-an-error/341620/5 "2015-12-29T16:30:48Z")
Honestly, I’ve not used it before your suggestion here. I’ve just created a simple test project that has the widget and I can see it in the editor, but it doesn’t load in HTML5 and packaging to a mobile device has an issue that won’t allow it to package, which has been reported with UE-19350.