# \#module **URL:** https://forums.unrealengine.com/tag/module/736.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Should a primary game module use Public/Private folders when an editor module depends on it?](https://forums.unrealengine.com/t/should-a-primary-game-module-use-public-private-folders-when-an-editor-module-depends-on-it/2735332)
**Author:** [@SilentGarud](https://forums.unrealengine.com/u/SilentGarud)\ **Replies:** 0\ **Last updated:** [July 13, 2026, 7:24am UTC](https://forums.unrealengine.com/t/should-a-primary-game-module-use-public-private-folders-when-an-editor-module-depends-on-it/2735332 "2026-07-13T07:24:04Z")
Epic’s module documentation recommends Public and Private folders, and says the flat layout is unnecessary only when no other module depends on the primary module. However, Lyra keeps LyraGame flat, exposes its module ro… --- ## [I cannot launch a session for my UEFN island I'm getting module error and I've tried literally everything I need help please this island is very important to me ](https://forums.unrealengine.com/t/i-cannot-launch-a-session-for-my-uefn-island-im-getting-module-error-and-ive-tried-literally-everything-i-need-help-please-this-island-is-very-important-to-me/2709800)
**Author:** [@iNaughtyVibez](https://forums.unrealengine.com/u/iNaughtyVibez)\ **Replies:** 0\ **Last updated:** [March 29, 2026, 1:03pm UTC](https://forums.unrealengine.com/t/i-cannot-launch-a-session-for-my-uefn-island-im-getting-module-error-and-ive-tried-literally-everything-i-need-help-please-this-island-is-very-important-to-me/2709800 "2026-03-29T13:03:45Z")
Summary I’m repeatedly getting a module error for my UEFN island and I think I need epic to help me Please select what you are reporting on: Unreal Editor for Fortnite What Type of Bug are you experiencing? Other Step… --- ## [Niagara Add Velocity (and other forces) not working at all](https://forums.unrealengine.com/t/niagara-add-velocity-and-other-forces-not-working-at-all/1762425)
**Author:** [@Joliviad](https://forums.unrealengine.com/u/Joliviad)\ **Replies:** 3\ **Last updated:** [August 21, 2025, 9:53pm UTC](https://forums.unrealengine.com/t/niagara-add-velocity-and-other-forces-not-working-at-all/1762425 "2025-08-21T21:53:49Z")
So the issue I am having is that I’m trying to create a particle effect and no Velocity modules are working. Even when I just go straight to create emitter - fountain - the preset fountain emitter doesn’t even work. I as… --- ## [Gltf Extensions with custom Interchange Pipelines / Translators](https://forums.unrealengine.com/t/gltf-extensions-with-custom-interchange-pipelines-translators/2613514)
**Author:** [@Rumzie](https://forums.unrealengine.com/u/Rumzie)\ **Replies:** 7\ **Last updated:** [August 1, 2025, 2:03pm UTC](https://forums.unrealengine.com/t/gltf-extensions-with-custom-interchange-pipelines-translators/2613514 "2025-08-01T14:03:10Z")
I’m trying to add support for a custom extension handler in UE 5.6 and beyond building on the Interchange modules. From the looks of the GLTFCore module they are only supporting somewhat enterprise level extensions that … --- ## [Resolved : LNK2001 Error ("unresolved external symbol GInternalProjectName") Due to Module Naming Issue in a Plugin Project](https://forums.unrealengine.com/t/resolved-lnk2001-error-unresolved-external-symbol-ginternalprojectname-due-to-module-naming-issue-in-a-plugin-project/2389629)
**Author:** [@koromire1](https://forums.unrealengine.com/u/koromire1)\ **Replies:** 0\ **Last updated:** [March 14, 2025, 12:15pm UTC](https://forums.unrealengine.com/t/resolved-lnk2001-error-unresolved-external-symbol-ginternalprojectname-due-to-module-naming-issue-in-a-plugin-project/2389629 "2025-03-14T12:15:26Z")
Hi everyone, I wanted to share the solution to a rather tricky packaging error I encountered when developing an Unreal Engine plugin. I was receiving several linker errors during packaging (for Windows) such as: UATHel… --- ## [How to use a function from a custom module in creative device?](https://forums.unrealengine.com/t/how-to-use-a-function-from-a-custom-module-in-creative-device/2387222)
**Author:** [@MrDJ2U](https://forums.unrealengine.com/u/MrDJ2U)\ **Replies:** 9\ **Last updated:** [March 13, 2025, 4:12pm UTC](https://forums.unrealengine.com/t/how-to-use-a-function-from-a-custom-module-in-creative-device/2387222 "2025-03-13T16:12:11Z")
I’m not sure what the problem is in the way I’m using modules. I’ve researched for awhile and can’t find anything that really explains it. I have created the following module for the purpose of cycling vending machines… --- ## [CreateModuleVersions failed / Can't open live edit session](https://forums.unrealengine.com/t/createmoduleversions-failed-cant-open-live-edit-session/2153313)
**Author:** [@Blakjack\_866](https://forums.unrealengine.com/u/Blakjack_866)\ **Replies:** 0\ **Last updated:** [November 26, 2024, 10:05pm UTC](https://forums.unrealengine.com/t/createmoduleversions-failed-cant-open-live-edit-session/2153313 "2024-11-26T22:05:28Z")
Summary When attempting to create a live edit session the session fully finishes uploading, then about a minute later an error message pops up saying, “Unable to find Module cd120e53-4178-6d9c-d71b-d4b9014e59eb v1 in the… --- ## [How Rename game module ? (it contains C++ code)](https://forums.unrealengine.com/t/how-rename-game-module-it-contains-c-code/467760)
**Author:** [@UnrealVerseGuru](https://forums.unrealengine.com/u/UnrealVerseGuru)\ **Replies:** 4\ **Last updated:** [November 21, 2024, 2:39pm UTC](https://forums.unrealengine.com/t/how-rename-game-module-it-contains-c-code/467760 "2024-11-21T14:39:37Z")
Hi, all other methods do not work anymore. I tried all of these multiple times, give multiple errors (mainly with BPs): Please @Epic help us. --- ## [Unable to load Module](https://forums.unrealengine.com/t/unable-to-load-module/330343)
**Author:** [@Asgatoril](https://forums.unrealengine.com/u/Asgatoril)\ **Replies:** 8\ **Last updated:** [January 10, 2024, 9:49am UTC](https://forums.unrealengine.com/t/unable-to-load-module/330343 "2024-01-10T09:49:56Z")
Hi, I’m trying to get UE4 running on Linux (Linux Mint 13.2) and have some problems. I build the Editor after this Manual: A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums The Editor i… --- ## [How to draw debug mesh in a component visualizer?](https://forums.unrealengine.com/t/how-to-draw-debug-mesh-in-a-component-visualizer/374836)
**Author:** [@IAmCurrahee](https://forums.unrealengine.com/u/IAmCurrahee)\ **Replies:** 5\ **Last updated:** [December 4, 2023, 3:33pm UTC](https://forums.unrealengine.com/t/how-to-draw-debug-mesh-in-a-component-visualizer/374836 "2023-12-04T15:33:39Z")
I currently have a simple component which follows a spline. I’m looking to extend the editor to preview a given mesh which is following the spline in the editor. I currently already have my editor module and component v… --- ## [Specify Target For Project Modules Client/Server](https://forums.unrealengine.com/t/specify-target-for-project-modules-client-server/723390)
**Author:** [@a\_najafi](https://forums.unrealengine.com/u/a_najafi)\ **Replies:** 0\ **Last updated:** [December 7, 2022, 2:51pm UTC](https://forums.unrealengine.com/t/specify-target-for-project-modules-client-server/723390 "2022-12-07T14:51:50Z")
We are developing a turn based multiplayer game and I am trying to separate Client/Server code. I have tried the steps bellow but haven’t been able to achieve a correct result. Step1: I have created separate project mod… --- ## [Is this how to use modules correctly? (\[Project\]Module, \[Project\]GameModule, \[Project\]MenuModule)](https://forums.unrealengine.com/t/is-this-how-to-use-modules-correctly-project-module-project-gamemodule-project-menumodule/837740)
**Author:** [@DELGOODIE](https://forums.unrealengine.com/u/DELGOODIE)\ **Replies:** 0\ **Last updated:** [April 1, 2023, 6:53pm UTC](https://forums.unrealengine.com/t/is-this-how-to-use-modules-correctly-project-module-project-gamemodule-project-menumodule/837740 "2023-04-01T18:53:44Z")
So I’m not really sure what the best way to correctly organize my project is and I was wondering if I could get some advice? My game is a standard multiplayer fps, so players will start the game and enter a main menu → q… --- ## [A strange problem about the UMG module](https://forums.unrealengine.com/t/a-strange-problem-about-the-umg-module/739876)
**Author:** [@Cchen771](https://forums.unrealengine.com/u/Cchen771)\ **Replies:** 0\ **Last updated:** [January 1, 2023, 2:02pm UTC](https://forums.unrealengine.com/t/a-strange-problem-about-the-umg-module/739876 "2023-01-01T14:02:09Z")
At first sorry for my bad English. I create a C++ HUD class like this // Fill out your copyright notice in the Description page of Project Settings. #pragma once #include "CoreMinimal.h" #include "GameFramework/HUD.h… --- ## [Can't use FOnlineSubsystemBPCallHelper in my projcte](https://forums.unrealengine.com/t/cant-use-fonlinesubsystembpcallhelper-in-my-projcte/403966)
**Author:** [@LuooYu](https://forums.unrealengine.com/u/LuooYu)\ **Replies:** 3\ **Last updated:** [October 4, 2022, 12:08pm UTC](https://forums.unrealengine.com/t/cant-use-fonlinesubsystembpcallhelper-in-my-projcte/403966 "2022-10-04T12:08:16Z")
Hi. I want to use FOnlineSubsystemBPCallHelper in my project. And I added the required modules.(“OnlineSubsystem” and “OnlineSubsystemUtils”) But if I want to include “OnlineSubsystemBPCallHelper.h”, it always says ca… --- ## [Plugin functions only visible in module type: "Runtime" not "Editor"](https://forums.unrealengine.com/t/plugin-functions-only-visible-in-module-type-runtime-not-editor/478946)
**Author:** [@carpet200](https://forums.unrealengine.com/u/carpet200)\ **Replies:** 3\ **Last updated:** [February 17, 2021, 5:32pm UTC](https://forums.unrealengine.com/t/plugin-functions-only-visible-in-module-type-runtime-not-editor/478946 "2021-02-17T17:32:41Z")
I have my own plugin called CTools that i have been using. I wanted to add an Editor module called CToolsEditor to it so i can use custom Blueprint nodes. The problem is that it’s functions won’t show up in Blueprint un… --- ## ["ActorLayerUtilities Failed" Error](https://forums.unrealengine.com/t/actorlayerutilities-failed-error/478719)
**Author:** [@anonymous\_user\_e826daf6](https://forums.unrealengine.com/u/anonymous_user_e826daf6)\ **Replies:** 0\ **Last updated:** [February 13, 2021, 8:24pm UTC](https://forums.unrealengine.com/t/actorlayerutilities-failed-error/478719 "2021-02-13T20:24:39Z")
I am getting following error as I launch Unreal Engine, Do anyone know fix to this? --- ## [Generate project files for umodule](https://forums.unrealengine.com/t/generate-project-files-for-umodule/473782)
**Author:** [@developer100](https://forums.unrealengine.com/u/developer100)\ **Replies:** 2\ **Last updated:** [November 1, 2020, 4:01pm UTC](https://forums.unrealengine.com/t/generate-project-files-for-umodule/473782 "2020-11-01T16:01:32Z")
Anyone knows how to generate project files also for the umodule inside the uproject? Unreal will build the module correctly, but will not generate VC project files for it. I tried using UnrealBuildTool, with -Plugin and … --- ## [How to rebuild an Engine Plugin?](https://forums.unrealengine.com/t/how-to-rebuild-an-engine-plugin/363175)
**Author:** [@Roel](https://forums.unrealengine.com/u/Roel)\ **Replies:** 7\ **Last updated:** [September 21, 2020, 6:39pm UTC](https://forums.unrealengine.com/t/how-to-rebuild-an-engine-plugin/363175 "2020-09-21T18:39:11Z")
When I create plugins inside my game folder I’m able to adjust the plugin files and recompile them from within my game project .sln. But whenever I put plugins inside the engine folder they won’t recompile from within v… --- ## [Niagara Module Script - How to create a user Parameter in 4.25](https://forums.unrealengine.com/t/niagara-module-script-how-to-create-a-user-parameter-in-4-25/469992)
**Author:** [@anonymous\_user\_8ae5a3a7](https://forums.unrealengine.com/u/anonymous_user_8ae5a3a7)\ **Replies:** 0\ **Last updated:** [August 19, 2020, 8:58am UTC](https://forums.unrealengine.com/t/niagara-module-script-how-to-create-a-user-parameter-in-4-25/469992 "2020-08-19T08:58:51Z")
Since the release of 4.25, you can’t create a user parameter in the Module Script of Niagara anymore. All the options you get from Map Get are all different from the last version. Since I can’t cerate a new User Paramete… --- ## [How can I see niagara module outputs in the module stack?](https://forums.unrealengine.com/t/how-can-i-see-niagara-module-outputs-in-the-module-stack/468908)
**Author:** [@anonymous\_user\_4d14cb96](https://forums.unrealengine.com/u/anonymous_user_4d14cb96)\ **Replies:** 0\ **Last updated:** [July 30, 2020, 2:33pm UTC](https://forums.unrealengine.com/t/how-can-i-see-niagara-module-outputs-in-the-module-stack/468908 "2020-07-30T14:33:09Z")
Hi all. Usually in the niagara emitter module stack only the module Inputs are visible. For some reason I have one niagara system that shows also all the Outputs from all the modules, ie. which particle etc attributes … --- ## ['DataPrepOperation.h' file not found despite valid build.cs config](https://forums.unrealengine.com/t/dataprepoperation-h-file-not-found-despite-valid-build-cs-config/466888)
**Author:** [@sandwichest](https://forums.unrealengine.com/u/sandwichest)\ **Replies:** 2\ **Last updated:** [July 4, 2020, 9:47am UTC](https://forums.unrealengine.com/t/dataprepoperation-h-file-not-found-despite-valid-build-cs-config/466888 "2020-07-04T09:47:11Z")
I am trying to build an Editor Plugin on Linux with ue4cli inside a ue4-docker container and hitting a somewhat confusing error. Notes: Same plugin builds fine on Windows the ue4-full linux docker container being use… --- ## [Can I use the engine's source code in my plugin?](https://forums.unrealengine.com/t/can-i-use-the-engines-source-code-in-my-plugin/462351)
**Author:** [@Gamji](https://forums.unrealengine.com/u/Gamji)\ **Replies:** 1\ **Last updated:** [March 14, 2020, 1:37pm UTC](https://forums.unrealengine.com/t/can-i-use-the-engines-source-code-in-my-plugin/462351 "2020-03-14T13:37:37Z")
Hi all, I have a plugin on the marketplace that uses DesktopPlatformModule for some of its functions. Now since DesktopPlatformModule is a developer module, it doesn’t package when using the Shipping build configuration… --- ## [What do the /script lines mean in uasset?](https://forums.unrealengine.com/t/what-do-the-script-lines-mean-in-uasset/460932)
**Author:** [@anonymous\_user\_0cf40951](https://forums.unrealengine.com/u/anonymous_user_0cf40951)\ **Replies:** 0\ **Last updated:** [January 25, 2020, 9:48am UTC](https://forums.unrealengine.com/t/what-do-the-script-lines-mean-in-uasset/460932 "2020-01-25T09:48:33Z")
What do the script lines mean inside a uasset for example DefaultSpriteMaterial.uasset /Script/CoreUObject /Script/Engine /Script/Paper2D The script Paper2D no longer exists because I’m trying to override a plugin. … --- ## [Bug: Particle's Vel/Life causes position shift](https://forums.unrealengine.com/t/bug-particles-vel-life-causes-position-shift/290058)
**Author:** [@KillerPenguin](https://forums.unrealengine.com/u/KillerPenguin)\ **Replies:** 36\ **Last updated:** [October 24, 2019, 9:33pm UTC](https://forums.unrealengine.com/t/bug-particles-vel-life-causes-position-shift/290058 "2019-10-24T21:33:54Z")
Hello all, reporting a problem with particle system here. When you put absolute velocity in Particle’s Velocity/Life module, your particle’s initial position will be shifted by the same amount without calculating its ro… --- ## [特定のビルドだけプラグインを無効にする方法](https://forums.unrealengine.com/t/topic/455635)
**Author:** [@Answers.Archive](https://forums.unrealengine.com/u/Answers.Archive)\ **Replies:** 6\ **Last updated:** [September 19, 2019, 8:13am UTC](https://forums.unrealengine.com/t/topic/455635 "2019-09-19T08:13:30Z")
お世話になっております。 現在、デバッグ用の機能を持つプラグインを用意しており、Shippingビルドでは不要になるので、その場合のみ無効にしたいと思っております。 最低限、プラグインに含まれるコンテンツをパッケージから取り除きたいと考えているのですが、何か方法がございますでしょうか？ ご教示の程、よろしくお願い致します。 --- ## [Cascade modules extremely small on 4k screen in 4.18](https://forums.unrealengine.com/t/cascade-modules-extremely-small-on-4k-screen-in-4-18/409838)
**Author:** [@Luos](https://forums.unrealengine.com/u/Luos)\ **Replies:** 14\ **Last updated:** [July 12, 2019, 10:00am UTC](https://forums.unrealengine.com/t/cascade-modules-extremely-small-on-4k-screen-in-4-18/409838 "2019-07-12T10:00:54Z")
The cascade modules are extremely small on 4k screens in 4.18.1. Video showing difference between 4.16 and 4.18.1 (also works fine in 4.17) --- ## [Cascade issue - Emitter Initial Location Module](https://forums.unrealengine.com/t/cascade-issue-emitter-initial-location-module/330144)
**Author:** [@threedsnack](https://forums.unrealengine.com/u/threedsnack)\ **Replies:** 6\ **Last updated:** [June 19, 2019, 1:16am UTC](https://forums.unrealengine.com/t/cascade-issue-emitter-initial-location-module/330144 "2019-06-19T01:16:01Z")
When spawning particles off of a parent particle, everything works fine. However if there is ever a time when I am emitting no parent particles, the child particles emit anyways at the root of the particle actor. Am I mi… --- ## [Linker error compile Editor module](https://forums.unrealengine.com/t/linker-error-compile-editor-module/450687)
**Author:** [@anonymous\_user\_5df73663](https://forums.unrealengine.com/u/anonymous_user_5df73663)\ **Replies:** 0\ **Last updated:** [June 14, 2019, 6:37pm UTC](https://forums.unrealengine.com/t/linker-error-compile-editor-module/450687 "2019-06-14T18:37:53Z")
Hi, we are having problems building our project in the Editor. Building standalone (through VS) works, and we have isolated the error to building ProgEditor. Prog by itself works fine. I believe the problem to be caused… --- ## [Niagara Emitter doesn't play](https://forums.unrealengine.com/t/niagara-emitter-doesnt-play/436229)
**Author:** [@stblurbles](https://forums.unrealengine.com/u/stblurbles)\ **Replies:** 3\ **Last updated:** [May 24, 2019, 2:01am UTC](https://forums.unrealengine.com/t/niagara-emitter-doesnt-play/436229 "2019-05-24T02:01:04Z")
Hi, While following this tutorial: Unreal Engine Niagara Tutorial - YouTube I get to the stage where i’m adding the particle spawn module that sets a vector variable with a random tri coordinate of a static mesh sample.… --- ## [Making custom events for niagara](https://forums.unrealengine.com/t/making-custom-events-for-niagara/439232)
**Author:** [@Storm\_Foreshadow](https://forums.unrealengine.com/u/Storm_Foreshadow)\ **Replies:** 3\ **Last updated:** [April 13, 2019, 8:39am UTC](https://forums.unrealengine.com/t/making-custom-events-for-niagara/439232 "2019-04-13T08:39:02Z")
Hi I want to make custom event generator and handler for niagara. I know that handler and generator are just modules inside of /Niagara Content/Modules/Events and event inside of it is just a normal struct in /Niagara Co… [Next page](https://forums.unrealengine.com/tag/module/736.md?match_all_tags=true&page=1&tags%5B%5D=module)