# \#engine-compile **URL:** https://forums.unrealengine.com/tag/engine-compile/10073.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Rendering issues with UE 5.8 projects created from VR template on mac](https://forums.unrealengine.com/t/rendering-issues-with-ue-5-8-projects-created-from-vr-template-on-mac/2734863)
**Author:** [@OrbitalZones](https://forums.unrealengine.com/u/OrbitalZones)\ **Replies:** 5\ **Last updated:** [August 5, 2026, 9:47am UTC](https://forums.unrealengine.com/t/rendering-issues-with-ue-5-8-projects-created-from-vr-template-on-mac/2734863 "2026-08-05T09:47:59Z")
After i created a project from the VR template, not a single mesh is rendered in the scene! Is anyone else having the same issue? I think this is related to a config in the project settings. Projects created from other … --- ## [Building Unreal Engine Editor from source fails](https://forums.unrealengine.com/t/building-unreal-engine-editor-from-source-fails/2695059)
**Author:** [@shue\_it](https://forums.unrealengine.com/u/shue_it)\ **Replies:** 1\ **Last updated:** [March 3, 2026, 3:21pm UTC](https://forums.unrealengine.com/t/building-unreal-engine-editor-from-source-fails/2695059 "2026-03-03T15:21:33Z")
Hello, I’m trying to build Unreal Engine from source (based on 5.7.1-release tag). I followed the README instructions and : executed Setup.bat script executed GenerateProjectFiles.bat script Open the project from UE5… --- ## [UE 5.6 Project Stuck at rc2.exe When Building ](https://forums.unrealengine.com/t/ue-5-6-project-stuck-at-rc2-exe-when-building/2687891)
**Author:** [@u9king](https://forums.unrealengine.com/u/u9king)\ **Replies:** 2\ **Last updated:** [December 29, 2025, 11:27am UTC](https://forums.unrealengine.com/t/ue-5-6-project-stuck-at-rc2-exe-when-building/2687891 "2025-12-29T11:27:21Z")
My UE 5.6 project gets stuck at rc2.exe for a very long time, and sometimes it won’t even open at all. Is there any way to fix this? I have already modified the file located at %AppData%\\Roaming\\Unreal Engine\\Unreal… --- ## [Include paths are off when building engine modules](https://forums.unrealengine.com/t/include-paths-are-off-when-building-engine-modules/2652245)
**Author:** [@ddbrown30](https://forums.unrealengine.com/u/ddbrown30)\ **Replies:** 0\ **Last updated:** [August 30, 2025, 12:38am UTC](https://forums.unrealengine.com/t/include-paths-are-off-when-building-engine-modules/2652245 "2025-08-30T00:38:26Z")
I’ve integrated the engine code directly into my project and I’m trying to compile. I was getting a bunch of weird compile errors that only made sense once I noticed the path errors coming from the build files. For exam… --- ## [Engine Source Version Setup.bat(GitDependencies.exe)Failed to read '...\\Engine\\Build\\Commit.gitdeps.xml': System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize](https://forums.unrealengine.com/t/engine-source-version-setup-bat-gitdependencies-exe-failed-to-read-engine-build-commit-gitdeps-xml-system-configuration-configurationerrorsexception-configuration-system-failed-to-initialize/2619483)
**Author:** [@zyzy29221](https://forums.unrealengine.com/u/zyzy29221)\ **Replies:** 0\ **Last updated:** [July 26, 2025, 9:35pm UTC](https://forums.unrealengine.com/t/engine-source-version-setup-bat-gitdependencies-exe-failed-to-read-engine-build-commit-gitdeps-xml-system-configuration-configurationerrorsexception-configuration-system-failed-to-initialize/2619483 "2025-07-26T21:35:20Z")
I used to be able to download the engine source file normally through Setup.bat and finally compile it in VS, but later I uninstalled VS2019 (only VS2022 remained) and modified some NET framework,then I can no longer suc… --- ## [Does UE compilation require Qt 5?](https://forums.unrealengine.com/t/does-ue-compilation-require-qt-5/2605816)
**Author:** [@RokeJulianLockhart](https://forums.unrealengine.com/u/RokeJulianLockhart)\ **Replies:** 1\ **Last updated:** [July 15, 2025, 11:33pm UTC](https://forums.unrealengine.com/t/does-ue-compilation-require-qt-5/2605816 "2025-07-15T23:33:45Z")
During this, I saw some errata (chronologically undermentioned): This shouldn’t be X11 these days. Regardless, it could at least adhere to the DE’s anti-alias preferences. Removing corrupt toolchain and redown… --- ## [How to uninstall compiled UE?](https://forums.unrealengine.com/t/how-to-uninstall-compiled-ue/2605820)
**Author:** [@RokeJulianLockhart](https://forums.unrealengine.com/u/RokeJulianLockhart)\ **Replies:** 0\ **Last updated:** [July 15, 2025, 6:58pm UTC](https://forums.unrealengine.com/t/how-to-uninstall-compiled-ue/2605820 "2025-07-15T18:58:39Z")
Context I’d like to restart a potentially corrupt compilation: Progress I’ve tried removing the .desktop files: …and it doesn’t appear to have been added to $PATH: RokeJulianLockhart@Beedell:~$ echo $PATH /home/Ro… --- ## [How to use an Unreal source build as a packaged one](https://forums.unrealengine.com/t/how-to-use-an-unreal-source-build-as-a-packaged-one/2409765)
**Author:** [@rokenrock](https://forums.unrealengine.com/u/rokenrock)\ **Replies:** 1\ **Last updated:** [March 25, 2025, 4:02pm UTC](https://forums.unrealengine.com/t/how-to-use-an-unreal-source-build-as-a-packaged-one/2409765 "2025-03-25T16:02:30Z")
Hey everyone, Up until now, I’ve been using a source build of the engine that is the same version as the project I’m working on, and just excluding the changed engine build identifier from ever being committed. I do als… --- ## [how to check compiling shaders finished by blueprint or c++](https://forums.unrealengine.com/t/how-to-check-compiling-shaders-finished-by-blueprint-or-c/474604)
**Author:** [@shinozaki\_ss](https://forums.unrealengine.com/u/shinozaki_ss)\ **Replies:** 13\ **Last updated:** [March 20, 2025, 7:53am UTC](https://forums.unrealengine.com/t/how-to-check-compiling-shaders-finished-by-blueprint-or-c/474604 "2025-03-20T07:53:31Z")
ues Editor Utility Widget When importing the model, the compiler always compiles the shaders automatically. Can I get a certain return value after the completion of the compilation of the shaders, which is convenient fo… --- ## [Trying to add shading model makes code unable to compile](https://forums.unrealengine.com/t/trying-to-add-shading-model-makes-code-unable-to-compile/419200)
**Author:** [@Jeyna](https://forums.unrealengine.com/u/Jeyna)\ **Replies:** 2\ **Last updated:** [December 28, 2024, 2:24pm UTC](https://forums.unrealengine.com/t/trying-to-add-shading-model-makes-code-unable-to-compile/419200 "2024-12-28T14:24:35Z")
Hello, this is my first time ever asking something on here, so I hope this will be alright. I tried searching for similar topics but couldn’t find anything that seemed to be related to the problem I am experiencing righ… --- ## [4.23.1 Package Unable To Compile with Target.cs issue](https://forums.unrealengine.com/t/4-23-1-package-unable-to-compile-with-target-cs-issue/465138)
**Author:** [@cupcakefury](https://forums.unrealengine.com/u/cupcakefury)\ **Replies:** 6\ **Last updated:** [November 1, 2024, 3:43pm UTC](https://forums.unrealengine.com/t/4-23-1-package-unable-to-compile-with-target-cs-issue/465138 "2024-11-01T15:43:34Z")
Hello all, Whenever I’ve attempted to cook content or package my project, I’ve gotten “ERROR: Unable to compile source files” with error codes CS1001, CS1513, CS1518, CS1022 (Picture below for reference). Same issue in … --- ## [Get compile\_commands.json](https://forums.unrealengine.com/t/get-compile-commands-json/433389)
**Author:** [@anonymous\_user\_5be014f9](https://forums.unrealengine.com/u/anonymous_user_5be014f9)\ **Replies:** 19\ **Last updated:** [September 20, 2024, 7:31pm UTC](https://forums.unrealengine.com/t/get-compile-commands-json/433389 "2024-09-20T19:31:41Z")
Hey, i am using rdm (with emacs) for my game development. rdm requires a compile\_commands.json file which is a file that contains all the the compile commands for the code. I am trying to create one for my game code and… --- ## [Compilation failed - UE4.23 preview with Chaos](https://forums.unrealengine.com/t/compilation-failed-ue4-23-preview-with-chaos/454483)
**Author:** [@theRPGmaster](https://forums.unrealengine.com/u/theRPGmaster)\ **Replies:** 10\ **Last updated:** [August 2, 2024, 4:58pm UTC](https://forums.unrealengine.com/t/compilation-failed-ue4-23-preview-with-chaos/454483 "2024-08-02T16:58:09Z")
Compilation error: ‘metahost.h’ not found. I’ve been trying to compile the preview version for 4.23 from source (with Chaos enabled), and this error has been persistently occurring, looks like this is a quite common iss… --- ## [Compilation error while migration from 4.26.2 to 4.27.0](https://forums.unrealengine.com/t/compilation-error-while-migration-from-4-26-2-to-4-27-0/487863)
**Author:** [@anonymous\_user\_8afed8c6](https://forums.unrealengine.com/u/anonymous_user_8afed8c6)\ **Replies:** 6\ **Last updated:** [July 26, 2024, 7:11am UTC](https://forums.unrealengine.com/t/compilation-error-while-migration-from-4-26-2-to-4-27-0/487863 "2024-07-26T07:11:38Z")
While moving project to 4.27.0 version I got some complication errors which are not related to project source. How to fix following issues? C:\\Program Files (x86)\\Windows Kits\\10\\include\\10.0.19041.0\\um\\winioctl.h(1032… --- ## [HoloLens Error CS0234 while trying to compile UE4 from source](https://forums.unrealengine.com/t/hololens-error-cs0234-while-trying-to-compile-ue4-from-source/1210445)
**Author:** [@Inerowd](https://forums.unrealengine.com/u/Inerowd)\ **Replies:** 1\ **Last updated:** [July 25, 2024, 2:11pm UTC](https://forums.unrealengine.com/t/hololens-error-cs0234-while-trying-to-compile-ue4-from-source/1210445 "2024-07-25T14:11:37Z")
I keep getting this error while I’m trying to compile UE 4.27.2 from source. I did everything as this guide said, but I always get this error no matter what I do. The only thing I’m doing differently is that I’m running… --- ## [Looping through Array but start at later Index. ForLoop vs ForEachLoop](https://forums.unrealengine.com/t/looping-through-array-but-start-at-later-index-forloop-vs-foreachloop/503184)
**Author:** [@Zvenzo](https://forums.unrealengine.com/u/Zvenzo)\ **Replies:** 5\ **Last updated:** [May 12, 2024, 8:29pm UTC](https://forums.unrealengine.com/t/looping-through-array-but-start-at-later-index-forloop-vs-foreachloop/503184 "2024-05-12T20:29:25Z")
Hi, I want to loop through my Array but I want to start at a later Index. My solutions, either go with a Forloop and define the start index, or use ForEachLoop and check each entry with a “Skipp me”? branch. Any real … --- ## [Why is Unreal 5.3.2 Source - Now only working as project specific engine installations, rather than engine installation specific projects?](https://forums.unrealengine.com/t/why-is-unreal-5-3-2-source-now-only-working-as-project-specific-engine-installations-rather-than-engine-installation-specific-projects/1628988)
**Author:** [@IntXThOrn](https://forums.unrealengine.com/u/IntXThOrn)\ **Replies:** 4\ **Last updated:** [March 31, 2024, 2:37pm UTC](https://forums.unrealengine.com/t/why-is-unreal-5-3-2-source-now-only-working-as-project-specific-engine-installations-rather-than-engine-installation-specific-projects/1628988 "2024-03-31T14:37:08Z")
When installing 5.3.2 from GitHub release source using the latest VS 22 with the latest updates these engine builds become project specific engine installations, rather than engine specific projects. An example of this. … --- ## [Build error Visual Studio](https://forums.unrealengine.com/t/build-error-visual-studio/1672213)
**Author:** [@Gramachandran](https://forums.unrealengine.com/u/Gramachandran)\ **Replies:** 2\ **Last updated:** [February 15, 2024, 6:01pm UTC](https://forums.unrealengine.com/t/build-error-visual-studio/1672213 "2024-02-15T18:01:37Z")
I am getting build issue with Unreal Engine 5.3 and Visual Studio 2022 I regenerated the project file and errors occurs when I try to build from solution file. I cant open the project unless its build from source. Can … --- ## [Error: non-portable path to file when building Unreal Editor for Linux on Windows](https://forums.unrealengine.com/t/error-non-portable-path-to-file-when-building-unreal-editor-for-linux-on-windows/411639)
**Author:** [@Geekazoid](https://forums.unrealengine.com/u/Geekazoid)\ **Replies:** 7\ **Last updated:** [September 23, 2023, 8:56pm UTC](https://forums.unrealengine.com/t/error-non-portable-path-to-file-when-building-unreal-editor-for-linux-on-windows/411639 "2023-09-23T20:56:13Z")
When building the Unreal Editor for Linux on Windows the ShaderCompilerWorker as well as other modules fail to compile: 1\>------ Build started: Project: ShaderCompileWorker, Configuration: Linux\_Development\_Program Win3… --- ## [Unreal Build Tool Error: ubt\> ERROR: Unhandled exception: System.ArgumentNullException: Value cannot be null](https://forums.unrealengine.com/t/unreal-build-tool-error-ubt-error-unhandled-exception-system-argumentnullexception-value-cannot-be-null/469851)
**Author:** [@DevinSherry](https://forums.unrealengine.com/u/DevinSherry)\ **Replies:** 3\ **Last updated:** [June 29, 2023, 11:38am UTC](https://forums.unrealengine.com/t/unreal-build-tool-error-ubt-error-unhandled-exception-system-argumentnullexception-value-cannot-be-null/469851 "2023-06-29T11:38:43Z")
When I attempt to compile via the Unreal Game Sync, I receive the following error: Compiling HeroEditor... ubt\> Running D:\\Hero4.25\\Engine\\Binaries\\DotNET\\UnrealBuildTool.exe HeroEditor Win64 Debug "D:\\Hero4.25\\Hero\\Her… --- ## [Is there any quick way of switching solution config from Development Editor to DebugGame Editor?](https://forums.unrealengine.com/t/is-there-any-quick-way-of-switching-solution-config-from-development-editor-to-debuggame-editor/796327)
**Author:** [@S\_Q\_R](https://forums.unrealengine.com/u/S_Q_R)\ **Replies:** 0\ **Last updated:** [March 22, 2023, 9:54am UTC](https://forums.unrealengine.com/t/is-there-any-quick-way-of-switching-solution-config-from-development-editor-to-debuggame-editor/796327 "2023-03-22T09:54:02Z")
So I’m working on 4.27 source version of the engine. I need to switch solution config from time to time to debug the code. When I was working on binary version of the engine from marketplace that switch was relatively qu… --- ## [UE 5.1.1 doesn't load prerequisites](https://forums.unrealengine.com/t/ue-5-1-1-doesnt-load-prerequisites/775165)
**Author:** [@irvnriir](https://forums.unrealengine.com/u/irvnriir)\ **Replies:** 2\ **Last updated:** [February 21, 2023, 12:36pm UTC](https://forums.unrealengine.com/t/ue-5-1-1-doesnt-load-prerequisites/775165 "2023-02-21T12:36:41Z")
{ GitDependencies.exe / Setup.bat } gets stuck at certain point Checking dependencies... Updating dependencies: 38% (40475/97340), 16.8/12431.3 MiB | 2.80 MiB/s, 7803.5 MiB cached... Checking dependencies... Upd… --- ## [Ubuntu Linux Engine Compilation fails](https://forums.unrealengine.com/t/ubuntu-linux-engine-compilation-fails/767648)
**Author:** [@Bionic\_Ape](https://forums.unrealengine.com/u/Bionic_Ape)\ **Replies:** 0\ **Last updated:** [February 10, 2023, 12:04am UTC](https://forums.unrealengine.com/t/ubuntu-linux-engine-compilation-fails/767648 "2023-02-10T00:04:05Z")
Hi, I am fairly new to compiling the Engine in Linux using an actual Linux Operanting system instead of Cross Compiling, and I am not having any success… I am trying to build from source using the tag 5.1.1-release wit… --- ## [How to fix UE4 4.19 not compiling shaders? (Getting stuck at 45%)](https://forums.unrealengine.com/t/how-to-fix-ue4-4-19-not-compiling-shaders-getting-stuck-at-45/420076)
**Author:** [@IIIBlackhartIII](https://forums.unrealengine.com/u/IIIBlackhartIII)\ **Replies:** 19\ **Last updated:** [January 25, 2023, 6:19pm UTC](https://forums.unrealengine.com/t/how-to-fix-ue4-4-19-not-compiling-shaders-getting-stuck-at-45/420076 "2023-01-25T18:19:13Z")
I’ve been having some very strange issues with 4.19 that I can’t seem to resolve, issues which weren’t present when I was using 4.18.3; namely, attempting to launch a project with additional rendering features (for examp… --- ## [Unable to compile source files](https://forums.unrealengine.com/t/unable-to-compile-source-files/484446)
**Author:** [@ClarkDalel](https://forums.unrealengine.com/u/ClarkDalel)\ **Replies:** 7\ **Last updated:** [January 10, 2023, 7:06pm UTC](https://forums.unrealengine.com/t/unable-to-compile-source-files/484446 "2023-01-10T19:06:22Z")
Please help me i have no idea whats happening here i cannot compile my project. error note say “unable to compile source file” i already try any methods to solve it but it cant Please help me --- ## [Delegate Crash](https://forums.unrealengine.com/t/delegate-crash/481793)
**Author:** [@ACBYTES](https://forums.unrealengine.com/u/ACBYTES)\ **Replies:** 2\ **Last updated:** [December 14, 2022, 9:26am UTC](https://forums.unrealengine.com/t/delegate-crash/481793 "2022-12-14T09:26:54Z")
Hi. I have to compile the C++ code for 3-4 times before playing the game to avoid the game from crashing because of an inner problem in the Multicast Delegate and Delegate classes. \*\*Unhandled Exception: EXCEPTION\_ACCE… --- ## [Rebuild entire engine after packaging](https://forums.unrealengine.com/t/rebuild-entire-engine-after-packaging/382265)
**Author:** [@Fluppi393](https://forums.unrealengine.com/u/Fluppi393)\ **Replies:** 8\ **Last updated:** [October 11, 2022, 2:36pm UTC](https://forums.unrealengine.com/t/rebuild-entire-engine-after-packaging/382265 "2022-10-11T14:36:17Z")
Hello! I am using a custom engine built from source with few bug fixes, and every time after I package my project I have to rebuild the entire engine in the Development Editor configuration. This can be very frustrating… --- ## [When packaging any project using Engine built from source, Engine modules seem forced to being compiled](https://forums.unrealengine.com/t/when-packaging-any-project-using-engine-built-from-source-engine-modules-seem-forced-to-being-compiled/485606)
**Author:** [@Esukarotsupu](https://forums.unrealengine.com/u/Esukarotsupu)\ **Replies:** 1\ **Last updated:** [September 7, 2022, 12:06pm UTC](https://forums.unrealengine.com/t/when-packaging-any-project-using-engine-built-from-source-engine-modules-seem-forced-to-being-compiled/485606 "2022-09-07T12:06:37Z")
Hello, I’m currently trying to use a 4.26.0 engine I compiled from source, but packaging any project ends up compiling what seems to be engine modules : This is the case for every first package on any projects creat… --- ## [Builds fail with - AutomationTool exiting with ExitCode=25 (Error\_UnknownCookFailure)](https://forums.unrealengine.com/t/builds-fail-with-automationtool-exiting-with-exitcode-25-error-unknowncookfailure/381505)
**Author:** [@anonymous\_user\_bb2c1c15](https://forums.unrealengine.com/u/anonymous_user_bb2c1c15)\ **Replies:** 2\ **Last updated:** [August 1, 2022, 8:29am UTC](https://forums.unrealengine.com/t/builds-fail-with-automationtool-exiting-with-exitcode-25-error-unknowncookfailure/381505 "2022-08-01T08:29:54Z")
Game packages normal for Windows but when I’m building out for Xbox One I get this Error - UATHelper: Packaging (Xbox One): Program.Main: AutomationTool exiting with ExitCode=25 (Error\_UnknownCookFailure) UATHelper: Pac… --- ## [Compiling shaders every time I open a project](https://forums.unrealengine.com/t/compiling-shaders-every-time-i-open-a-project/412993)
**Author:** [@Krayfishkarl](https://forums.unrealengine.com/u/Krayfishkarl)\ **Replies:** 5\ **Last updated:** [July 22, 2022, 11:04pm UTC](https://forums.unrealengine.com/t/compiling-shaders-every-time-i-open-a-project/412993 "2022-07-22T23:04:07Z")
I’ve been having a strange problem recently. For some reason, every time I start up my project, the shaders have to compile. It’s usually around 5,000 or so. I searched the answer hub and help forum and couldn’t find any… [Next page](https://forums.unrealengine.com/tag/engine-compile/10073.md?match_all_tags=true&page=1&tags%5B%5D=engine-compile)