# \#launch-error **URL:** https://forums.unrealengine.com/tag/launch-error/6711.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## ["Couldn't set association for project. Check the file is writeable" when trying to generate project files](https://forums.unrealengine.com/t/couldnt-set-association-for-project-check-the-file-is-writeable-when-trying-to-generate-project-files/305091)
**Author:** [@anonymous\_user\_9e160399](https://forums.unrealengine.com/u/anonymous_user_9e160399)\ **Replies:** 7\ **Last updated:** [February 5, 2025, 2:02am UTC](https://forums.unrealengine.com/t/couldnt-set-association-for-project-check-the-file-is-writeable-when-trying-to-generate-project-files/305091 "2025-02-05T02:02:45Z")
I am getting this error constantly when trying to generate Visual Studio project files from a .uproject file that I have on a Perforce server. I have VS 2013, Unreal Engine 4.6.1, and Windows 7. I don’t understand what t… --- ## [I get multiple errors every time I launch session and still don't know what is exactly the problem](https://forums.unrealengine.com/t/i-get-multiple-errors-every-time-i-launch-session-and-still-dont-know-what-is-exactly-the-problem/2249280)
**Author:** [@x9hbu](https://forums.unrealengine.com/u/x9hbu)\ **Replies:** 0\ **Last updated:** [December 29, 2024, 7:32pm UTC](https://forums.unrealengine.com/t/i-get-multiple-errors-every-time-i-launch-session-and-still-dont-know-what-is-exactly-the-problem/2249280 "2024-12-29T19:32:35Z")
I deleted everything I imported and still getting errors every time I launch session, and haven’t imported anything else like materials or anything since yesterday, I got these errors today and don’t know what’s the prob… --- ## [Execution failed for Task :app:compileDebugAidl FAILED](https://forums.unrealengine.com/t/execution-failed-for-task-compiledebugaidl-failed/470952)
**Author:** [@Magnus\_Ihrefors](https://forums.unrealengine.com/u/Magnus_Ihrefors)\ **Replies:** 9\ **Last updated:** [November 13, 2022, 2:27pm UTC](https://forums.unrealengine.com/t/execution-failed-for-task-compiledebugaidl-failed/470952 "2022-11-13T14:27:39Z")
Hi, When I try to launch or package my project (targeting android and occulus quest) I get this error log. I am using UE 4.25.3 and installed Android studio as explained in the docs: Anybody knows what to do? Best … --- ## [Unreal Engine Not Launching](https://forums.unrealengine.com/t/unreal-engine-not-launching/308169)
**Author:** [@PantherNZ](https://forums.unrealengine.com/u/PantherNZ)\ **Replies:** 10\ **Last updated:** [May 30, 2022, 7:22am UTC](https://forums.unrealengine.com/t/unreal-engine-not-launching/308169 "2022-05-30T07:22:05Z")
Hey there. I have just gotten my License for UE4 through my Uni. I downloaded the Epic Games Launcher, installed it and then started the download for UE4 4.7.0. Once it was finished, I clicked launch but nothing happened… --- ## [Unreal Engine doesn’t launch Mac](https://forums.unrealengine.com/t/unreal-engine-doesn-t-launch-mac/465259)
**Author:** [@anonymous\_user\_64046d4b](https://forums.unrealengine.com/u/anonymous_user_64046d4b)\ **Replies:** 8\ **Last updated:** [February 23, 2022, 2:39am UTC](https://forums.unrealengine.com/t/unreal-engine-doesn-t-launch-mac/465259 "2022-02-23T02:39:37Z")
Launching from Epic Games Launcher, it’s window disappears and Unreal Engine never opens. When trying again and and forcing Epic Games Launcher to appear during launch, it shows that the Launch is ‘Running’ but then tim… --- ## [Trying to launch to android phone, get ERROR: Platform Android is not a valid platform to build. Check that the SDK is installed properly](https://forums.unrealengine.com/t/trying-to-launch-to-android-phone-get-error-platform-android-is-not-a-valid-platform-to-build-check-that-the-sdk-is-installed-properly/487948)
**Author:** [@MultiJess](https://forums.unrealengine.com/u/MultiJess)\ **Replies:** 1\ **Last updated:** [August 25, 2021, 5:46pm UTC](https://forums.unrealengine.com/t/trying-to-launch-to-android-phone-get-error-platform-android-is-not-a-valid-platform-to-build-check-that-the-sdk-is-installed-properly/487948 "2021-08-25T17:46:29Z")
Hi, It’s been 2 days of troubleshooting and I have made no progress on solving my launch error of " ERROR: Platform Android is not a valid platform to build. Check that the SDK is installed properly. " I have reinstall… --- ## [Can't launch UE 4.26.2 on Mac High Sierra](https://forums.unrealengine.com/t/cant-launch-ue-4-26-2-on-mac-high-sierra/484338)
**Author:** [@Peter\_Yeo](https://forums.unrealengine.com/u/Peter_Yeo)\ **Replies:** 0\ **Last updated:** [June 3, 2021, 7:45am UTC](https://forums.unrealengine.com/t/cant-launch-ue-4-26-2-on-mac-high-sierra/484338 "2021-06-03T07:45:17Z")
Hi, newbie here. I just installed Unreal Engine on my Mac running on High Sierra. RAM: 8GB, HDD: about 60GB. I am unable to launch Unreal Engine 4.26.2 nor 4.13.2. I’m not a programmer and I have basic computing skills. … --- ## [Can't Launch 4.26 on Mac 10.14](https://forums.unrealengine.com/t/cant-launch-4-26-on-mac-10-14/475575)
**Author:** [@Kuujtim](https://forums.unrealengine.com/u/Kuujtim)\ **Replies:** 1\ **Last updated:** [May 14, 2021, 11:14pm UTC](https://forums.unrealengine.com/t/cant-launch-4-26-on-mac-10-14/475575 "2021-05-14T23:14:30Z")
I’ve installed version 4.26 and I can’t get it to open. I’m running macOS 10.14 and I have 4.19, 4.22, and 4.23 installed which launch just fine. I’m not getting any error message or crash report pop-up, but when I open … --- ## [Cannot launch a project build, error "The procedure entry point CreateDXGIFactory2 could not be located in the library DLL dxgi.dll"](https://forums.unrealengine.com/t/cannot-launch-a-project-build-error-the-procedure-entry-point-createdxgifactory2-could-not-be-located-in-the-library-dll-dxgi-dll/468508)
**Author:** [@Garlic\_AAZ](https://forums.unrealengine.com/u/Garlic_AAZ)\ **Replies:** 4\ **Last updated:** [February 20, 2021, 12:43am UTC](https://forums.unrealengine.com/t/cannot-launch-a-project-build-error-the-procedure-entry-point-createdxgifactory2-could-not-be-located-in-the-library-dll-dxgi-dll/468508 "2021-02-20T00:43:47Z")
Hello. Me and my friend are working on one game project. I am a 3d artist and he is a programmer, and he creates the game builds. Recently he updated his unreal engine to the latest 4.25 version, created a new game build… --- ## [Android AR JAVA\_HOME Error](https://forums.unrealengine.com/t/android-ar-java-home-error/472277)
**Author:** [@anonymous\_user\_ea24a500](https://forums.unrealengine.com/u/anonymous_user_ea24a500)\ **Replies:** 1\ **Last updated:** [October 2, 2020, 2:59pm UTC](https://forums.unrealengine.com/t/android-ar-java-home-error/472277 "2020-10-02T14:59:29Z")
As I was trying to launch an AR game to my Android device I get the following errors: ERROR: JAVA\_HOME is set to an invalid directory: D:\\AndroidStudio\\jre ERROR: cmd.exe failed with args /c “C:\\Users\\bruno\\OneDrive\\Do… --- ## [Face AR Sample project not working properly on ipad](https://forums.unrealengine.com/t/face-ar-sample-project-not-working-properly-on-ipad/468197)
**Author:** [@anonymous\_user\_fa24766e](https://forums.unrealengine.com/u/anonymous_user_fa24766e)\ **Replies:** 1\ **Last updated:** [July 16, 2020, 6:44am UTC](https://forums.unrealengine.com/t/face-ar-sample-project-not-working-properly-on-ipad/468197 "2020-07-16T06:44:22Z")
ue4 I am a beginner. When I tried to test Face AR Sample and installed it by specifying the device from the option of the launch button, The installation is completed, but it fails to start. Also, when I manually start… --- ## [Launch Fail for Magic Leap](https://forums.unrealengine.com/t/launch-fail-for-magic-leap/447660)
**Author:** [@JordanHarveyVFX](https://forums.unrealengine.com/u/JordanHarveyVFX)\ **Replies:** 1\ **Last updated:** [October 27, 2019, 1:24am UTC](https://forums.unrealengine.com/t/launch-fail-for-magic-leap/447660 "2019-10-27T01:24:53Z")
When trying to build a blank scene with only a cube in it, UE4 Fails to launch into the Magic Leap. I’ve installed all the necessary components and SDK files into the proper place and updated the SDK directory in the pro… --- ## [Problem when i try to launch](https://forums.unrealengine.com/t/problem-when-i-try-to-launch/444611)
**Author:** [@Labrador23](https://forums.unrealengine.com/u/Labrador23)\ **Replies:** 1\ **Last updated:** [May 6, 2019, 2:16pm UTC](https://forums.unrealengine.com/t/problem-when-i-try-to-launch/444611 "2019-05-06T14:16:05Z")
So the idea is that when i try to launch my 2d game to my android i get a Launch error that sound like “Warning: Warning: License for package Android SDK Build-Tools 26.0.2 not accepted.” Anything i can do about it? --- ## [IOS Deployment Failure \*PLEASE HELP\*](https://forums.unrealengine.com/t/ios-deployment-failure-please-help/442866)
**Author:** [@wnbaum](https://forums.unrealengine.com/u/wnbaum)\ **Replies:** 0\ **Last updated:** [February 6, 2019, 10:01pm UTC](https://forums.unrealengine.com/t/ios-deployment-failure-please-help/442866 "2019-02-06T22:01:45Z")
I have been increasingly frustrated with how hard it is to deploy to iOS from UE4. I have been trying to do this for about a year now with no luck. For some reason, I always get an error when trying to deploy to iOS. I a… --- ## [An error that will spoil the game! Please, help me!](https://forums.unrealengine.com/t/an-error-that-will-spoil-the-game-please-help-me/440782)
**Author:** [@PayPalmeMacMaxYT](https://forums.unrealengine.com/u/PayPalmeMacMaxYT)\ **Replies:** 1\ **Last updated:** [January 7, 2019, 3:18pm UTC](https://forums.unrealengine.com/t/an-error-that-will-spoil-the-game-please-help-me/440782 "2019-01-07T15:18:40Z")
--- ## [Launch failed](https://forums.unrealengine.com/t/launch-failed/440516)
**Author:** [@Himanshu\_Phalke](https://forums.unrealengine.com/u/Himanshu_Phalke)\ **Replies:** 1\ **Last updated:** [January 3, 2019, 11:03am UTC](https://forums.unrealengine.com/t/launch-failed/440516 "2019-01-03T11:03:25Z")
Recently every time when i try to launch the project it fails by showing message - ‘Launch Failed’ , i even tried to launch the blank project/templete but even it failed, This never happened before , See the screeens… --- ## [UE can't launch](https://forums.unrealengine.com/t/ue-cant-launch/440462)
**Author:** [@Herrjea](https://forums.unrealengine.com/u/Herrjea)\ **Replies:** 0\ **Last updated:** [January 2, 2019, 1:19pm UTC](https://forums.unrealengine.com/t/ue-cant-launch/440462 "2019-01-02T13:19:11Z")
I’ve tried with the versions 4.18, 4.19, 4.20 and 4.21, and also uninstalling and reinstalling both and UE version and the whole Epic Games launcher, and the result is always the same. It tries to launch UE, hides the wi… --- ## [Launch failed error , launch failed](https://forums.unrealengine.com/t/launch-failed-error-launch-failed/440393)
**Author:** [@Himanshu\_Phalke](https://forums.unrealengine.com/u/Himanshu_Phalke)\ **Replies:** 0\ **Last updated:** [January 1, 2019, 7:50am UTC](https://forums.unrealengine.com/t/launch-failed-error-launch-failed/440393 "2019-01-01T07:50:01Z")
Every time now when i LAUNCH my third person project. it displays LAUNCH FAILED. Even i tried to just launch the blank templete , but ot failed I have atteched the photo of OUTPUT LOG , pls help, alt text --- ## [Does anyone know how to fix this launch error?](https://forums.unrealengine.com/t/does-anyone-know-how-to-fix-this-launch-error/438475)
**Author:** [@anonymous\_user\_d7cf234d](https://forums.unrealengine.com/u/anonymous_user_d7cf234d)\ **Replies:** 0\ **Last updated:** [November 28, 2018, 11:44am UTC](https://forums.unrealengine.com/t/does-anyone-know-how-to-fix-this-launch-error/438475 "2018-11-28T11:44:19Z")
I’m trying to launch on my Android phone and this error pops up in the log. Anyone know what I have to change or download? --- ## [When launching game, it fails to launch UAT when compiling/packaging](https://forums.unrealengine.com/t/when-launching-game-it-fails-to-launch-uat-when-compiling-packaging/403831)
**Author:** [@anon51081996](https://forums.unrealengine.com/u/anon51081996)\ **Replies:** 1\ **Last updated:** [May 26, 2018, 4:31pm UTC](https://forums.unrealengine.com/t/when-launching-game-it-fails-to-launch-uat-when-compiling-packaging/403831 "2018-05-26T16:31:45Z")
When I try to test my project under “Project Launcher” it fails to launch UAT and cancels the rest of the compiling/Packaging. This is the output log: Running AutomationTool… Automation.ParseCommandLine: Parsing comma… --- ## [Since the latest Fortnite Update I get an Unreal process has crashed and i can not enter the game this happens everytime. I am just launching the game in a normal manner](https://forums.unrealengine.com/t/since-the-latest-fortnite-update-i-get-an-unreal-process-has-crashed-and-i-can-not-enter-the-game-this-happens-everytime-i-am-just-launching-the-game-in-a-normal-manner/417525)
**Author:** [@TheYonatan](https://forums.unrealengine.com/u/TheYonatan)\ **Replies:** 77\ **Last updated:** [February 20, 2018, 2:33pm UTC](https://forums.unrealengine.com/t/since-the-latest-fortnite-update-i-get-an-unreal-process-has-crashed-and-i-can-not-enter-the-game-this-happens-everytime-i-am-just-launching-the-game-in-a-normal-manner/417525 "2018-02-20T14:33:39Z")
Can you please Help LoginId:f618d3374f34b070a176f7b7f64dc0ed EpicAccountId:d78700d4638d4bdebe7fd0b5a9d9c04a You do not have any debugging symbols required to display the callstack for this crash. --- ## [UE4 Crashes Immediately on Launch (Mac OSX)](https://forums.unrealengine.com/t/ue4-crashes-immediately-on-launch-mac-osx/414405)
**Author:** [@SqueakyHudson](https://forums.unrealengine.com/u/SqueakyHudson)\ **Replies:** 1\ **Last updated:** [January 31, 2018, 12:56am UTC](https://forums.unrealengine.com/t/ue4-crashes-immediately-on-launch-mac-osx/414405 "2018-01-31T00:56:58Z")
For the longest time I kept getting LS-0014 Launch Error Code when trying to launch UE4 on my MacBook Pro. Someone on a forum suggested I “verify” the installation which I did. Once it was finished, NOW when I click laun… --- ## [I can't launch unreal engine](https://forums.unrealengine.com/t/i-cant-launch-unreal-engine/413397)
**Author:** [@Shiffan](https://forums.unrealengine.com/u/Shiffan)\ **Replies:** 0\ **Last updated:** [January 2, 2018, 2:09pm UTC](https://forums.unrealengine.com/t/i-cant-launch-unreal-engine/413397 "2018-01-02T14:09:50Z")
Helo I am student on a gaming school and I need unreal to worck at home. But when I finish to install unreal and try to launch it there is an error message that says “the elements to install unreal engine couldn’t be i… --- ## [ProjectName.h.pch is not a valid precompiled header](https://forums.unrealengine.com/t/projectname-h-pch-is-not-a-valid-precompiled-header/370143)
**Author:** [@Cavellana](https://forums.unrealengine.com/u/Cavellana)\ **Replies:** 5\ **Last updated:** [November 30, 2017, 12:09pm UTC](https://forums.unrealengine.com/t/projectname-h-pch-is-not-a-valid-precompiled-header/370143 "2017-11-30T12:09:53Z")
Whenever I try to build my project for 64-bit or launch I get this error: D:\\Documents\\Unreal Projects\\MegaRisk\\Source\\MegaRisk\\Online\\MegaRiskGameSession.cpp: fatal error C1852: 'D:\\Documents\\Unreal Projects\\MegaRisk\\I… --- ## [Launch to Android Fails Every Time Same Error](https://forums.unrealengine.com/t/launch-to-android-fails-every-time-same-error/407492)
**Author:** [@FyrxStudio](https://forums.unrealengine.com/u/FyrxStudio)\ **Replies:** 5\ **Last updated:** [October 21, 2017, 7:26pm UTC](https://forums.unrealengine.com/t/launch-to-android-fails-every-time-same-error/407492 "2017-10-21T19:26:31Z")
First off I’ll say I’ve had this problem for over a year now, I’ve been working on a mobile game and now that I’m nearing the end I’ve been trying to launch it on my phone and test it. I’ve tried launching 4 separate pro… --- ## [UE4 Doesn't package nor launch html5](https://forums.unrealengine.com/t/ue4-doesnt-package-nor-launch-html5/371852)
**Author:** [@Bonorose](https://forums.unrealengine.com/u/Bonorose)\ **Replies:** 7\ **Last updated:** [March 21, 2017, 2:18am UTC](https://forums.unrealengine.com/t/ue4-doesnt-package-nor-launch-html5/371852 "2017-03-21T02:18:47Z")
Hello, Recently I have decided on trying to move one of my projects to HTML5, so that it can be used on our company site. Before doing anything more I just did a new project, blank blueprint /w starter, removed the cha… --- ## [Packaging Launch Error Unknown](https://forums.unrealengine.com/t/packaging-launch-error-unknown/387651)
**Author:** [@jamesoloughlin](https://forums.unrealengine.com/u/jamesoloughlin)\ **Replies:** 3\ **Last updated:** [March 12, 2017, 7:51am UTC](https://forums.unrealengine.com/t/packaging-launch-error-unknown/387651 "2017-03-12T07:51:22Z")
Hi Unreal Community, I’m a bit new to Unreal and having trouble launching or packaging a project. Have gone through the troubleshooting guide and even rebuilt the project but I can’t pinpoint the problem. A clean projec… --- ## [Launch時のエラーが解決できません](https://forums.unrealengine.com/t/launch/385314)
**Author:** [@anonymous\_user\_bc4fff75](https://forums.unrealengine.com/u/anonymous_user_bc4fff75)\ **Replies:** 8\ **Last updated:** [February 23, 2017, 7:47am UTC](https://forums.unrealengine.com/t/launch/385314 "2017-02-23T07:47:47Z")
このエラーの解決方法を調べてもさっぱりわかりません。 わかりにくい箇所がありましたら、ご指摘お願いします --- ## [Successfully packaged game crashes on launch](https://forums.unrealengine.com/t/successfully-packaged-game-crashes-on-launch/384556)
**Author:** [@Blackrock](https://forums.unrealengine.com/u/Blackrock)\ **Replies:** 4\ **Last updated:** [February 16, 2017, 9:44pm UTC](https://forums.unrealengine.com/t/successfully-packaged-game-crashes-on-launch/384556 "2017-02-16T21:44:55Z")
Hi! After successfully packaged my project and launching it, it crashes. See error below. I also added a link to the log. Any clues for a fix? I doesn’t matter if i remove the code that lets you change the resolution v… --- ## [Android Build Error - LOG ATTACHED](https://forums.unrealengine.com/t/android-build-error-log-attached/375604)
**Author:** [@Alpha\_Cats](https://forums.unrealengine.com/u/Alpha_Cats)\ **Replies:** 20\ **Last updated:** [November 17, 2016, 8:34am UTC](https://forums.unrealengine.com/t/android-build-error-log-attached/375604 "2016-11-17T08:34:08Z")
Trying to launch to Android device, keep getting this error, i have manually pointed UE4 to where the Android SDK, ndk and such are in the setting, this didnt fix the error. LogPlayLevel: UnrealBuildTool: LogPlayLevel: … [Next page](https://forums.unrealengine.com/tag/launch-error/6711.md?match_all_tags=true&page=1&tags%5B%5D=launch-error)