# \#pak-file **URL:** https://forums.unrealengine.com/tag/pak-file/10416.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Does ForceOneChunkPerFile Actually Assign Files to the Lowest Numbered Chunk? ](https://forums.unrealengine.com/t/does-forceonechunkperfile-actually-assign-files-to-the-lowest-numbered-chunk/2745563)
**Author:** [@euOnmyoji](https://forums.unrealengine.com/u/euOnmyoji)\ **Replies:** 0\ **Last updated:** [August 21, 2026, 3:52pm UTC](https://forums.unrealengine.com/t/does-forceonechunkperfile-actually-assign-files-to-the-lowest-numbered-chunk/2745563 "2026-08-21T15:52:53Z")
I have assets that are assigned to specific chunks for individual packaging, but there’s also a fallback label that catches all assets. This means some assets end up in multiple chunks simultaneously. I have several chu… --- ## [Accessing content, post package](https://forums.unrealengine.com/t/accessing-content-post-package/2672010)
**Author:** [@TomRubes](https://forums.unrealengine.com/u/TomRubes)\ **Replies:** 0\ **Last updated:** [November 5, 2025, 3:29pm UTC](https://forums.unrealengine.com/t/accessing-content-post-package/2672010 "2025-11-05T15:29:35Z")
Hi All, A little bit stuck, and looking for some general advice.. I am looking to dynamically load in html content using the web browser plugin. The web content (html files) are stored in the project content folder. W… --- ## [Custom pak file not loaded at start of Android app, while default one is loaded ](https://forums.unrealengine.com/t/custom-pak-file-not-loaded-at-start-of-android-app-while-default-one-is-loaded/2666935)
**Author:** [@maxbpm](https://forums.unrealengine.com/u/maxbpm)\ **Replies:** 0\ **Last updated:** [October 20, 2025, 1:55pm UTC](https://forums.unrealengine.com/t/custom-pak-file-not-loaded-at-start-of-android-app-while-default-one-is-loaded/2666935 "2025-10-20T13:55:42Z")
Hello, I try to package my Unreal project for Unreal. Since the obb became too big and I do not plan to use Google Playstore for now, I tried putting all in one big (test) pak for now. So the plan is to have an apk, an … --- ## [Streaming Level loaded from a Pak File](https://forums.unrealengine.com/t/streaming-level-loaded-from-a-pak-file/2086749)
**Author:** [@flo.rian\_zh](https://forums.unrealengine.com/u/flo.rian_zh)\ **Replies:** 2\ **Last updated:** [May 27, 2025, 11:22am UTC](https://forums.unrealengine.com/t/streaming-level-loaded-from-a-pak-file/2086749 "2025-05-27T11:22:53Z")
Hi all, I have some questions and problems when streaming a level loaded from a pak file. What I basically wan’t to achieve is that another developer can create a pak file with any level in it and my game can load and un… --- ## [Niagara Parameter Collection not getting set to the assigned ChunkID in pak file (always assigned to pakchunk0)](https://forums.unrealengine.com/t/niagara-parameter-collection-not-getting-set-to-the-assigned-chunkid-in-pak-file-always-assigned-to-pakchunk0/2521684)
**Author:** [@RomeoB.Invts](https://forums.unrealengine.com/u/RomeoB.Invts)\ **Replies:** 0\ **Last updated:** [May 21, 2025, 5:01pm UTC](https://forums.unrealengine.com/t/niagara-parameter-collection-not-getting-set-to-the-assigned-chunkid-in-pak-file-always-assigned-to-pakchunk0/2521684 "2025-05-21T17:01:43Z")
I am trying to create pak files, which I don’t have a problem with in general. But for some reason, only niagara parameter collections (NPC) are not correctly assigned to the Chunk ID I specify. It’s always getting assig… --- ## [How to Properly Encrypt Pak Files Using Unreal Engine](https://forums.unrealengine.com/t/how-to-properly-encrypt-pak-files-using-unreal-engine/2475958)
**Author:** [@alirizvi7861](https://forums.unrealengine.com/u/alirizvi7861)\ **Replies:** 0\ **Last updated:** [April 25, 2025, 5:28pm UTC](https://forums.unrealengine.com/t/how-to-properly-encrypt-pak-files-using-unreal-engine/2475958 "2025-04-25T17:28:34Z")
I’m working on an Android project in Unreal Engine and want to make sure my Pak files are encrypted before shipping. I’ve already enabled the following settings in Project Settings → Packaging: :white\_check\_mark: Use … --- ## [Assets aren't found by Asset Registry after running FPackageName::RegisterMountPoint](https://forums.unrealengine.com/t/assets-arent-found-by-asset-registry-after-running-fpackagename-registermountpoint/2404284)
**Author:** [@CurlyWTF](https://forums.unrealengine.com/u/CurlyWTF)\ **Replies:** 0\ **Last updated:** [March 21, 2025, 5:29am UTC](https://forums.unrealengine.com/t/assets-arent-found-by-asset-registry-after-running-fpackagename-registermountpoint/2404284 "2025-03-21T05:29:55Z")
Hi, so I’ve managed to get .pak files mounted automatically in my packaged game by packaging them as plugins in a seperate project. I was just wondering if the engine is correctly mounting the Pak files for me or if I n… --- ## [How to Load Files from a Mounted PAK File?](https://forums.unrealengine.com/t/how-to-load-files-from-a-mounted-pak-file/1235114)
**Author:** [@RedVonix](https://forums.unrealengine.com/u/RedVonix)\ **Replies:** 1\ **Last updated:** [October 9, 2024, 5:30pm UTC](https://forums.unrealengine.com/t/how-to-load-files-from-a-mounted-pak-file/1235114 "2024-10-09T17:30:27Z")
I’m able to successfully build a PAK file and inject it into our game - however I’m having issues being able to actually load anything from that PAK file. My code successfully finds all of the expected files in there, ho… --- ## [No files visible in project after unpack](https://forums.unrealengine.com/t/no-files-visible-in-project-after-unpack/478200)
**Author:** [@dhnikolas](https://forums.unrealengine.com/u/dhnikolas)\ **Replies:** 3\ **Last updated:** [August 12, 2024, 11:19am UTC](https://forums.unrealengine.com/t/no-files-visible-in-project-after-unpack/478200 "2024-08-12T11:19:38Z")
I am unpack my .pak file C:\\Users\\dhnik\>“C:\\Program Files\\Epic Games\\UE\_4.6\\Engine\\Binaries\\Win64\\UnrealPak.exe” C:\\Users\\dhnik\\Downloads\\Test2DAndroid-WindowsNoEditor.pak -Extract C:\\Users\\dhnik\\Documents\\project In o… --- ## [Obb not found, playstore key not set. why?](https://forums.unrealengine.com/t/obb-not-found-playstore-key-not-set-why/434128)
**Author:** [@Sanket\_Varia](https://forums.unrealengine.com/u/Sanket_Varia)\ **Replies:** 3\ **Last updated:** [August 9, 2024, 1:34am UTC](https://forums.unrealengine.com/t/obb-not-found-playstore-key-not-set-why/434128 "2024-08-09T01:34:40Z")
OK so i made a test game to test it on my android. So i packaged it, and i signed the google keys in the distribution section of project settings. I made sure that my phone was on developers mode. I packaged it. Then i c… --- ## [UnrealPak missing in Linux?](https://forums.unrealengine.com/t/unrealpak-missing-in-linux/453148)
**Author:** [@anonymous\_user\_a678e36f](https://forums.unrealengine.com/u/anonymous_user_a678e36f)\ **Replies:** 3\ **Last updated:** [August 2, 2024, 7:26pm UTC](https://forums.unrealengine.com/t/unrealpak-missing-in-linux/453148 "2024-08-02T19:26:22Z")
I built Unreal Engine 4.22 today to work on pak files, but UnrealPak seems to just straight up not exist. It’s odd, because even if it were windows only, I SHOULD have an exe since I have EXEs for everything else. I can … --- ## [Audio in Pak file fails to load](https://forums.unrealengine.com/t/audio-in-pak-file-fails-to-load/480377)
**Author:** [@Rareden](https://forums.unrealengine.com/u/Rareden)\ **Replies:** 6\ **Last updated:** [June 6, 2024, 4:28pm UTC](https://forums.unrealengine.com/t/audio-in-pak-file-fails-to-load/480377 "2024-06-06T16:28:13Z")
There appears to be a bug in 4.26.1 with loading any audio files from a pak file that are loaded during runtime. This a repeatable issue from my tests. To Produce: create a packaged game, in separate uproject that uses… --- ## [Patching a Project by comparing Hashes/Checksums](https://forums.unrealengine.com/t/patching-a-project-by-comparing-hashes-checksums/484013)
**Author:** [@BadNet85](https://forums.unrealengine.com/u/BadNet85)\ **Replies:** 2\ **Last updated:** [May 1, 2024, 9:12pm UTC](https://forums.unrealengine.com/t/patching-a-project-by-comparing-hashes-checksums/484013 "2024-05-01T21:12:35Z")
Hello, I am currently working on a Updater for our project. As we are not using steam / the epic game store or any other platform that offers a patching API/System we need to implement our own solution. Out approach wa… --- ## [How to Update .pak Chunk Files (without using ChunkDownloader)](https://forums.unrealengine.com/t/how-to-update-pak-chunk-files-without-using-chunkdownloader/1281607)
**Author:** [@ackyshacky](https://forums.unrealengine.com/u/ackyshacky)\ **Replies:** 2\ **Last updated:** [May 1, 2024, 8:50pm UTC](https://forums.unrealengine.com/t/how-to-update-pak-chunk-files-without-using-chunkdownloader/1281607 "2024-05-01T20:50:54Z")
I am trying to update my .pak files (for version control) myself without using ChunkDownloader. I am creating different chunks, and only want to update the chunks that changed. But here is the problem. Every time I pack… --- ## [How do I fix .pak file unpacking error?](https://forums.unrealengine.com/t/how-do-i-fix-pak-file-unpacking-error/1273301)
**Author:** [@GGEZ111000](https://forums.unrealengine.com/u/GGEZ111000)\ **Replies:** 2\ **Last updated:** [April 28, 2024, 7:56pm UTC](https://forums.unrealengine.com/t/how-do-i-fix-pak-file-unpacking-error/1273301 "2024-04-28T19:56:49Z")
I tried to extract the .pak file following this video (https://www.youtube.com/watch?v=AElxgCRXF64) but it came up saying LogPakFile: Display: Using command line for crypto configuration LogPakFile: Error: Incorrect arg… --- ## [How can I add INSTALL OBB or .PAK FILES in intro for android?](https://forums.unrealengine.com/t/how-can-i-add-install-obb-or-pak-files-in-intro-for-android/483677)
**Author:** [@serhatakgl](https://forums.unrealengine.com/u/serhatakgl)\ **Replies:** 1\ **Last updated:** [February 3, 2024, 5:12pm UTC](https://forums.unrealengine.com/t/how-can-i-add-install-obb-or-pak-files-in-intro-for-android/483677 "2024-02-03T17:12:28Z")
How can I add install section OBB or .PAK FILES in intro for android? You see games as low mb size on g. play store and when you download game, some packs download in intro. How can I do that? My game is 800+ mb, If I p… --- ## [Error: Unable to load pak order file](https://forums.unrealengine.com/t/error-unable-to-load-pak-order-file/449449)
**Author:** [@anonymous\_user\_af175ad41](https://forums.unrealengine.com/u/anonymous_user_af175ad41)\ **Replies:** 1\ **Last updated:** [February 3, 2024, 5:10pm UTC](https://forums.unrealengine.com/t/error-unable-to-load-pak-order-file/449449 "2024-02-03T17:10:20Z")
hi, I’m trying to package my project into Android\_multi but it gives me this error Error: Unable to load pak order file what is the problem? --- ## [Http chunks not generated for every pak chunks](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743)
**Author:** [@PACCAP](https://forums.unrealengine.com/u/PACCAP)\ **Replies:** 5\ **Last updated:** [February 3, 2024, 5:00pm UTC](https://forums.unrealengine.com/t/http-chunks-not-generated-for-every-pak-chunks/417743 "2024-02-03T17:00:22Z")
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 f… --- ## [(Not) "Use Pak Files" not working?](https://forums.unrealengine.com/t/not-use-pak-files-not-working/447039)
**Author:** [@Mewster](https://forums.unrealengine.com/u/Mewster)\ **Replies:** 1\ **Last updated:** [February 3, 2024, 4:49pm UTC](https://forums.unrealengine.com/t/not-use-pak-files-not-working/447039 "2024-02-03T16:49:13Z")
Hello. During some tests on packaging for an Android game, I found that unchecking the “Use Pak Files” flag on the Package section creates the .pak inside the .obb file just the same. Diffing their unPAKed inside shows… --- ## [Problem with accessing mounted On-Demand pak file (GooglePAD)](https://forums.unrealengine.com/t/problem-with-accessing-mounted-on-demand-pak-file-googlepad/1195974)
**Author:** [@RakibRahaman](https://forums.unrealengine.com/u/RakibRahaman)\ **Replies:** 1\ **Last updated:** [February 3, 2024, 4:47pm UTC](https://forums.unrealengine.com/t/problem-with-accessing-mounted-on-demand-pak-file-googlepad/1195974 "2024-02-03T16:47:19Z")
Hello everyone, I’m facing an issue with accessing the assets within a mounted On-Demand pak file (GooglePAD) in my Unreal Engine project. The pak file mounts successfully, but the assets contained within it are either … --- ## [.pak for Extension pack?](https://forums.unrealengine.com/t/pak-for-extension-pack/1659629)
**Author:** [@Faey01](https://forums.unrealengine.com/u/Faey01)\ **Replies:** 0\ **Last updated:** [February 2, 2024, 3:35am UTC](https://forums.unrealengine.com/t/pak-for-extension-pack/1659629 "2024-02-02T03:35:27Z")
Hello, I am trying to create an extension pack for our client where it should contain maps, assets, and some new assets models. I found ways to create it by using .pak files. Are the .pak files easy to use when we alre… --- ## [Load level from a pak file created in Project B to a package file created in Project A](https://forums.unrealengine.com/t/load-level-from-a-pak-file-created-in-project-b-to-a-package-file-created-in-project-a/474795)
**Author:** [@Sandeep\_Ande](https://forums.unrealengine.com/u/Sandeep_Ande)\ **Replies:** 1\ **Last updated:** [December 13, 2023, 11:34pm UTC](https://forums.unrealengine.com/t/load-level-from-a-pak-file-created-in-project-b-to-a-package-file-created-in-project-a/474795 "2023-12-13T23:34:57Z")
I have created a package containing main level from project A with release name as “GameRelease1.0” and I have created a pak file with the additional level in project B based on the release version name as “GameRelease1.… --- ## [How I can modifire extracted pak file, modifire and Pack again.](https://forums.unrealengine.com/t/how-i-can-modifire-extracted-pak-file-modifire-and-pack-again/1352242)
**Author:** [@TexTla](https://forums.unrealengine.com/u/TexTla)\ **Replies:** 0\ **Last updated:** [October 30, 2023, 8:57am UTC](https://forums.unrealengine.com/t/how-i-can-modifire-extracted-pak-file-modifire-and-pack-again/1352242 "2023-10-30T08:57:10Z")
Hey. I have a trouble in 5 version of engine. I builded project to pak file. Extract it. After that i try to Pack again and took error. I think, in UE5 new ruls for that. May be someone do like that? Below is the conten… --- ## [PAKing Maps (world partition) for post release distribution, compression amount](https://forums.unrealengine.com/t/paking-maps-world-partition-for-post-release-distribution-compression-amount/1298558)
**Author:** [@Am00k](https://forums.unrealengine.com/u/Am00k)\ **Replies:** 0\ **Last updated:** [September 16, 2023, 11:10am UTC](https://forums.unrealengine.com/t/paking-maps-world-partition-for-post-release-distribution-compression-amount/1298558 "2023-09-16T11:10:09Z")
Hi, I’ve been doing some experiments creating PAKs of world partition maps, it’s not necessary to have usable PAK files yet for me, but just to what degree unreal compresses the files. I’ve done a test by running Unrea… --- ## [Need help unpaking a .pak file](https://forums.unrealengine.com/t/need-help-unpaking-a-pak-file/1291656)
**Author:** [@Ivzn](https://forums.unrealengine.com/u/Ivzn)\ **Replies:** 0\ **Last updated:** [September 11, 2023, 10:24pm UTC](https://forums.unrealengine.com/t/need-help-unpaking-a-pak-file/1291656 "2023-09-11T22:24:01Z")
So I’m trying to extract a pak file, I have the correct key and engine version but I am stumped. I’ve used this command: "C:\\Program Files\\Epic Games\\UE\_5.1\\Engine\\Binaries\\Win64\\UnrealPak.exe" pakchunk0-Windows\_0\_P.pa… --- ## [Packaging (iOS): IPP ERROR: Application exception: System.IO.IOException: The file is too long. This operation is currently limited to supporting files less than 2 gigabytes in size](https://forums.unrealengine.com/t/packaging-ios-ipp-error-application-exception-system-io-ioexception-the-file-is-too-long-this-operation-is-currently-limited-to-supporting-files-less-than-2-gigabytes-in-size/467237)
**Author:** [@ali.quaker](https://forums.unrealengine.com/u/ali.quaker)\ **Replies:** 3\ **Last updated:** [August 22, 2023, 7:57pm UTC](https://forums.unrealengine.com/t/packaging-ios-ipp-error-application-exception-system-io-ioexception-the-file-is-too-long-this-operation-is-currently-limited-to-supporting-files-less-than-2-gigabytes-in-size/467237 "2023-08-22T19:57:56Z")
I am loosing my mind over this error in Unreal Engine 4.24.3. I am creating a development build for iOS to test on my actual device. The build process seems to go fine in the beginning and it cooks all assets and then … --- ## [Android: Is there a way to package individual .uasset files inside an .obb file?](https://forums.unrealengine.com/t/android-is-there-a-way-to-package-individual-uasset-files-inside-an-obb-file/465916)
**Author:** [@anonymous\_user\_dbffe4b8](https://forums.unrealengine.com/u/anonymous_user_dbffe4b8)\ **Replies:** 1\ **Last updated:** [July 6, 2023, 5:39am UTC](https://forums.unrealengine.com/t/android-is-there-a-way-to-package-individual-uasset-files-inside-an-obb-file/465916 "2023-07-06T05:39:13Z")
Hi, I’m currently messing around a bit with the packaging options for an Android build (project is for the oculus quest). I would like to know if there is a way to have the content assets split up into individual files … --- ## [Assets inside PAK file work, but previous files not valid after mounting on Android, but Work for Windows](https://forums.unrealengine.com/t/assets-inside-pak-file-work-but-previous-files-not-valid-after-mounting-on-android-but-work-for-windows/1202805)
**Author:** [@RakibRahaman](https://forums.unrealengine.com/u/RakibRahaman)\ **Replies:** 0\ **Last updated:** [June 18, 2023, 5:44am UTC](https://forums.unrealengine.com/t/assets-inside-pak-file-work-but-previous-files-not-valid-after-mounting-on-android-but-work-for-windows/1202805 "2023-06-18T05:44:44Z")
Hello Unreal Engine developers, I’m facing an issue with mounting a PAK file on Android. After successfully mounting the PAK file, the assets contained within it work as expected. However, I’ve noticed that the previous… --- ## [Shaders from mounted pak are not loaded when I mount the pak file and open the map from it](https://forums.unrealengine.com/t/shaders-from-mounted-pak-are-not-loaded-when-i-mount-the-pak-file-and-open-the-map-from-it/490142)
**Author:** [@Anry\_Narleyn](https://forums.unrealengine.com/u/Anry_Narleyn)\ **Replies:** 2\ **Last updated:** [June 1, 2023, 10:35am UTC](https://forums.unrealengine.com/t/shaders-from-mounted-pak-are-not-loaded-when-i-mount-the-pak-file-and-open-the-map-from-it/490142 "2023-06-01T10:35:41Z")
Greetings everyone. I am struggling with the issue for several days already and hope that someone will be able to help. Summary: Shaders from mounted pak are not loaded when I mount the pak file and open the map from it… --- ## [How to unpack a encrypted pak file](https://forums.unrealengine.com/t/how-to-unpack-a-encrypted-pak-file/764111)
**Author:** [@nothen3tron](https://forums.unrealengine.com/u/nothen3tron)\ **Replies:** 0\ **Last updated:** [February 5, 2023, 2:03pm UTC](https://forums.unrealengine.com/t/how-to-unpack-a-encrypted-pak-file/764111 "2023-02-05T14:03:39Z")
Urgent help needed! I want to mod efootball 23 mobile (for my personal use only)… But the file “main.307030201.jp.konami.pesam.obb” is not opening. I think it’s encrypted. I also have the encryption key. But I don’t kn… [Next page](https://forums.unrealengine.com/tag/pak-file/10416.md?match_all_tags=true&page=1&tags%5B%5D=pak-file)