# UE5-0 crashes when attempting to build the Third Person sample project **URL:** \ **Category:** Getting Started & Setup\ **Tags:** unreal-engine, crash, UE5-0, bug-report, question\ **Created:** [April 6, 2022, 9:07am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579 "2022-04-06T09:07:39Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![adiswa123](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/adiswa123/32/473242_2.png) [@adiswa123](https://forums.unrealengine.com/u/adiswa123)\ **Post date:** [April 6, 2022, 9:07am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/1 "2022-04-06T09:07:40Z")
Steps to Replicate 1. Install UE 5.0 from the Epic Games Launcher 2. Start UE 5.0 and create a C++ game using the Third Person template ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/e/b/9eb155abba4803846597c14df92f0acd5f3fe667.jpeg) 3. When the project opens, a prompt shows up saying the project file is out of date. Click update on the pop-up ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/d/0/7d09e71fc9e54eb94315e8c2b7c0f5325a0c9e5d.png) 4. From the menu, go to Build → Build all Levels 5. Select build HLODs in the dialogue that shows up when you initiate the build ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/9/e/c9e53aef76c1c33d46c15c85b917e20aa15434c1.png) 6. Click “Save Selected” when a dialogue pops up to save the PostProcessVolume and ThirdPersonMap 7. The build continues and we see a message show up saying HLOD build completed with a lot of log output. Click “Ok” on this dialogue Result: The editor now crashes with the following stack trace ```auto LoginId:8d18a9224da320fae814df965d45d5d3 EpicAccountId:97a8e87e68cd4d25a30b135d3aa7993b Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000000f0 UnrealEditor_CoreUObject UnrealEditor_UnrealEd UnrealEditor_UnrealEd UnrealEditor_LevelEditor UnrealEditor_LevelEditor UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_Slate UnrealEditor_ApplicationCore UnrealEditor_ApplicationCore UnrealEditor_ApplicationCore UnrealEditor_ApplicationCore user32 user32 UnrealEditor_ApplicationCore UnrealEditor UnrealEditor UnrealEditor UnrealEditor UnrealEditor UnrealEditor kernel32 ntdll ``` Question: Do I have something misconfigured in my system? Or is this a bug in Unreal 5.0? I am quite excited to start learning on the platform, so I’d very much appreciate some help fixing this. ---
**Author:** ![Pitbulllx](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/pitbulllx/32/88709_2.png) [@Pitbulllx](https://forums.unrealengine.com/u/Pitbulllx)\ **Post date:** [April 6, 2022, 10:12am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/2 "2022-04-06T10:12:35Z")
same thing happing to me, i can build lighting and no crash sometimes but once i build all its crashing everytime ---
**Author:** ![adiswa123](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/adiswa123/32/473242_2.png) [@adiswa123](https://forums.unrealengine.com/u/adiswa123)\ **Post date:** [April 8, 2022, 11:01am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/3 "2022-04-08T11:01:54Z")
Update: I hoped that the solution mentioned here would fix the issue - [UE5 Crash on building streaming texture - #8 by davisctools](https://forums.unrealengine.com/t/ue5-crash-on-building-streaming-texture/517624/8) But unfortunately even with this plugin enabled the same error occurs. ---
**Author:** ![Pitbulllx](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/pitbulllx/32/88709_2.png) [@Pitbulllx](https://forums.unrealengine.com/u/Pitbulllx)\ **Post date:** [April 9, 2022, 8:20am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/4 "2022-04-09T08:20:18Z")
@adiswa123 Nah still crashing ;/ ---
**Author:** ![Goodtiger](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/goodtiger/32/470194_2.png) [@Goodtiger](https://forums.unrealengine.com/u/Goodtiger)\ **Post date:** [April 9, 2022, 8:22am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/5 "2022-04-09T08:22:18Z")
this can be related to this > [@Unreal 5 Build crash aqProf.dll VtuneApi.dll](https://forums.unrealengine.com/t/unreal-5-build-crash-aqprof-dll-vtuneapi-dll/513399): > > Hello, I simply created a FPS projet, then try to build the projet then it crashes. Here is the log: Here is the first part of my error log: Log file open, 04/05/22 13:26:57 LogWindows: Failed to load ‘aqProf.dll’ (GetLastError=126) LogWindows: File ‘aqProf.dll’ does not exist LogProfilingDebugging: Loading WinPixEventRuntime.dll for PIX profiling (from …/…/…/Engine/Binaries/ThirdParty/Windows/WinPixEventRuntime/x64). LogWindows: Failed to load ‘VtuneApi.dll’ (GetLastError=126) LogWindows… or this > [@Building Hlods crashes editor](https://forums.unrealengine.com/t/building-hlods-crashes-editor/519452): > > My freshly installed ue5 crashes every single time i build all levels, i’ve singled it down to building hlods and minimap building hlods produces this after it comes up with the error message it crashes to this Pc specs: i7 9700kf (non oc) Msi Suprim 3080Ti 32gb ram ue5 is on an ssd ---
**Author:** ![adiswa123](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/adiswa123/32/473242_2.png) [@adiswa123](https://forums.unrealengine.com/u/adiswa123)\ **Post date:** [April 13, 2022, 2:05pm UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/6 "2022-04-13T14:05:04Z")
In case anyone is looking into this, I recently installed Editor Debugging symbols, and now have a proper stack trace ```auto LoginId:8d18a9224da320fae814df965d45d5d3 EpicAccountId:97a8e87e68cd4d25a30b135d3aa7993b Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000000f0 UnrealEditor_CoreUObject!UObjectBaseUtility::GetPackage() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectBaseUtility.cpp:189] UnrealEditor_UnrealEd!FBuildAllHandler::ProcessBuild() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\EditorBuildUtils.cpp:1204] UnrealEditor_UnrealEd!FEditorBuildUtils::EditorBuild() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\EditorBuildUtils.cpp:499] UnrealEditor_LevelEditor!FLevelEditorActionCallbacks::Build_Execute() [D:\build\++UE5\Sync\Engine\Source\Editor\LevelEditor\Private\LevelEditorActions.cpp:676] UnrealEditor_LevelEditor!TBaseStaticDelegateInstance::ExecuteIfSafe() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:731] UnrealEditor_Slate!FUICommandList::ExecuteAction() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Commands\UICommandList.cpp:99] UnrealEditor_Slate!SMenuEntryBlock::OnClicked() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SMenuEntryBlock.cpp:1148] UnrealEditor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SMenuEntryBlock.cpp:1108] UnrealEditor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,1,FReply __cdecl(void),FDefaultDelegateUserPolicy>::Execute() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:290] UnrealEditor_Slate!SButton::ExecuteOnClick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:464] UnrealEditor_Slate!SButton::OnMouseButtonUp() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:389] UnrealEditor_Slate!SMenuEntryButton::OnMouseButtonUp() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SMenuEntryBlock.cpp:434] UnrealEditor_Slate!::operator()() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:4961] UnrealEditor_Slate!FEventRouter::Route >() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:405] UnrealEditor_Slate!FSlateApplication::RoutePointerUpEvent() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:4947] UnrealEditor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5495] UnrealEditor_Slate!FSlateApplication::OnMouseUp() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5460] UnrealEditor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2210] UnrealEditor_ApplicationCore!FWindowsApplication::DeferMessage() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2699] UnrealEditor_ApplicationCore!FWindowsApplication::ProcessMessage() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:1078] UnrealEditor_ApplicationCore!FWindowsApplication::AppWndProc() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:916] user32 user32 UnrealEditor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsPlatformApplicationMisc.cpp:138] UnrealEditor!FEngineLoop::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5139] UnrealEditor!GuardedMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:183] UnrealEditor!GuardedMainWrapper() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:147] UnrealEditor!LaunchWindowsStartup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:283] UnrealEditor!WinMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:330] UnrealEditor!__scrt_common_main_seh() [d:\a01\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288] kernel32 ntdll ``` I really hope Epic is aware of this issue, would love to have this fixed. ---
**Author:** ![Pitbulllx](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/pitbulllx/32/88709_2.png) [@Pitbulllx](https://forums.unrealengine.com/u/Pitbulllx)\ **Post date:** [April 14, 2022, 1:05am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/7 "2022-04-14T01:05:11Z")
cheers mate, not sure if they are. have not hurd anything for over a week now since it started so hopfully they do ---
**Author:** ![adiswa123](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/adiswa123/32/473242_2.png) [@adiswa123](https://forums.unrealengine.com/u/adiswa123)\ **Post date:** [April 14, 2022, 6:04am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/8 "2022-04-14T06:04:47Z")
Ok with the help of my new stack trace, I was able to find the bug report for Unreal Engine (one already exists) - UE-148515 Please see [Unreal Engine Issues and Bug Tracker (UE-148515)](https://issues.unrealengine.com/issue/UE-148515) ---
**Author:** ![Akukiyo](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Akukiyo](https://forums.unrealengine.com/u/Akukiyo)\ **Post date:** [April 14, 2022, 9:50pm UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/9 "2022-04-14T21:50:27Z")
I had this happen yesterday when making a Top Down C++ new project, it was crashing in build, even though I’ve done nothing but create the project. I tried removing the extreme amount of plugins, like Android/iOS and others, but it still mentions Android Platform warnings and so on in UE5 Logs If I do a manual package for Windows it will complete and build it, but then the package crashes, it’s trying to index something and getting a NULL ref, which is weird, it’s trying to find a file on d: drive Assertion failed: Index != INDEX\_NONE [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Public\Animation\AttributeTypes.h] [Line: 117] Missing operator for attribute, type IntergerAnimationAttribute was not registered previously I hope it’s not a silly issue with a hardcoded drive of D: by accident, as I have a D: drive, and UE5 is not installed to it, the build is not on it, and so there is going to be a problem with attempting to make a virtual D: to unpack any Unreal Assets and such. ---
**Author:** ![adiswa123](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/adiswa123/32/473242_2.png) [@adiswa123](https://forums.unrealengine.com/u/adiswa123)\ **Post date:** [May 25, 2022, 5:22pm UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/10 "2022-05-25T17:22:20Z")
This has been fixed in Unreal Engine 5.0.2 hotfix See this post for more details - [5.0.2 Hotfix Released](https://forums.unrealengine.com/t/5-0-2-hotfix-released/566149) ---
**Author:** ![TimReago](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TimReago](https://forums.unrealengine.com/u/TimReago)\ **Post date:** [June 6, 2024, 1:03am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/11 "2024-06-06T01:03:21Z")
In my case, I knew the problem was in a plug-in related to a web browser from the initial error message, which included: WebBrowserSingleton.cpp Line 361. Then I found maybe a related function in LoginFlowManager.cpp Line 156 that appears to create a path statement using the WebBrowserSingleton class. And maybe also related to Line 877 in WebBrowserSingleton.cpp. Although these may be related to the cause of the problem. Not being familiar with the classes and code. It was not enough information to be sure about the problem and solution. Several people in the forum recommended looking at the .uproject file in a text editor. Searching for “WebBrowser” in the .uproject file led to two entries. I guessed which one to delete first. Then opened the project in UE 5.4. And the repeatable crash was gone. The plug-in that I removed was: EditorWebBrowser. Tim ---
**Author:** ![TimReago](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TimReago](https://forums.unrealengine.com/u/TimReago)\ **Post date:** [June 6, 2024, 4:04am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/12 "2024-06-06T04:04:00Z")
Around this same time, I installed UE 5.3 to gain access to additional plug-in’s that were not available in UE 5.4. UE 5.4 is installed on the C:\ drive. Whereas UE 5.3, installed after UE 5.4 was installed, UE 5.3 is installed on the D:\ drive. Thus, I wonder if it is a registry error. When installing UE 5.3 after having installed UE 5.4. And installing UE 5.3 to a different drive. I wonder if the UE 5.3 installation set a default path in the registry that UE 5.4 is then assuming is still accurate. Just a guess. ---
**Author:** ![TimReago](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TimReago](https://forums.unrealengine.com/u/TimReago)\ **Post date:** [June 6, 2024, 4:04am UTC](https://forums.unrealengine.com/t/ue5-0-crashes-when-attempting-to-build-the-third-person-sample-project/515579/13 "2024-06-06T04:04:02Z")
I am getting this same error: Assertion failed D:\build … in UE 5.4 in one of the WebBrowser plug-in’s, after having created a blank project. Then adding plug-in’s to the blank project. Then on next attempt to load the project into UE 5.4, the Assertion failed error shows up. Apparently the bug is not fixed. It looks like it is referencing an invalid directory. There is no D:\build++UE5\Sync\ directory on the computer. The rest of the path is correct starting from around … Engine\Source … So it looks like it is concatenating the wrong root directory. UPDATE … The writer of WebBrowserEditor responded to my post in the Questions for this plug-in, see: [https://www.unrealengine.com/marketplace/en-US/product/editor-web-browser/questions](https://www.unrealengine.com/marketplace/en-US/product/editor-web-browser/questions).