# Http chunks not generated for every pak chunks

**URL:** <https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743>\
**Category:** Platform & Builds\
**Tags:** pak-file, unreal-engine, http, UE4, question\
**Created:** [February 19, 2018, 10:48am UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743 "2018-02-19T10:48:34Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![PACCAP](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@PACCAP](https://forums.unrealengine.com/u/PACCAP)\
**Post date:** [February 19, 2018, 10:48am UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743/1 "2018-02-19T10:48:34Z")

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Hello, I am patching my android game based on previous release version. But when I generate http chunks, those chunks doesnt have every changes(like new blueprints, new maps…etc). I uploaded those chunks and downloaded from my old version game and only MainMenu widget is changed.

So I tried every setting in “ProjectLauncher” and I found out that Http chunks files are generated for only last pak file which is “pakchunk100-Android\_ETC2\_0\_P.pak”. There are 2 pak chunks which are pakchunk0 and pakchunk100 but http chunks are generated for only pakchunk100.

I already read mobile patching doc and search the google but can’t find right solution to my problem

Also, I tried these [https://answers.unrealengine.com/questions/457784/generate-chunks-packaging-fail.html](https://answers.unrealengine.com/questions/457784/generate-chunks-packaging-fail.html) and  
[https://answers.unrealengine.com/questions/499017/packaging-fails-when-using-chunks.html](https://answers.unrealengine.com/questions/499017/packaging-fails-when-using-chunks.html)  
But not worked for me.

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**Author:** ![PicaroonX](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@PicaroonX](https://forums.unrealengine.com/u/PicaroonX)\
**Post date:** [September 11, 2018, 12:37am UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743/2 "2018-09-11T00:37:58Z")

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Same question

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**Author:** ![Jone](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jone](https://forums.unrealengine.com/u/Jone)\
**Post date:** [January 17, 2019, 9:40am UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743/3 "2019-01-17T09:40:07Z")

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Did you guys finally find the reason? I also got this issue

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<div class="post-metadata">

**Author:** ![PACCAP](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@PACCAP](https://forums.unrealengine.com/u/PACCAP)\
**Post date:** [January 17, 2019, 3:56pm UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743/4 "2019-01-17T15:56:37Z")

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no, still cant find a proper solution. So, I didnt use patching, I just released full apk.

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**Author:** ![Jone](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jone](https://forums.unrealengine.com/u/Jone)\
**Post date:** [June 4, 2019, 8:39am UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743/5 "2019-06-04T08:39:07Z")

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Hi, PACCAP. I saw the source code and found UE4 doesn’t generate http chunk data for chunk0 by default. If you want you can change the source code.You can open CopyBuildStagingDirectory.Automation.cs which located in “Engine\Source\Programs\AutomationTool\Scipts”.Then jump to the line 1943, use `if(ChunkID >= 0)` instead of `if(ChunkID != 0)`.Last, open the UE source solution with Visual Studio and build AutomationTool. enjoy~

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**Author:** ![alirizvi7861](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@alirizvi7861](https://forums.unrealengine.com/u/alirizvi7861)\
**Post date:** [February 3, 2024, 5:00pm UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743/6 "2024-02-03T17:00:22Z")

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hello can you please explain how to generate pak files for android and utilize them, have successfully generated and utilized for windows but don’t know how to do this for mobile