# Unreal engine 5.5 doesn't compile **URL:** \ **Category:** Unreal Engine\ **Created:** [December 17, 2024, 8:27am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419 "2024-12-17T08:27:09Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![3DClouds](https://avatars.discourse-cdn.com/v4/letter/3/ee59a6/32.png) [@3DClouds](https://qa.fmod.com/u/3DClouds)\ **Post date:** [December 17, 2024, 8:27am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/1 "2024-12-17T08:27:09Z")
Hello, We download the 5.5 version of the plugin for windows and we noticed that the zip file size is 24 mb, the 5.4 version zip is 112mb. There are also missing file in the 5.5 version. When we try to compile it as always, it does fail. Can you check that the 5.5 archive is correct? The file name is fmodstudio20226ue5.5win64.zip thank you. ---
**Author:** ![apfelbaum](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/apfelbaum/32/4843_2.png) [@apfelbaum](https://qa.fmod.com/u/apfelbaum)\ **Post date:** [December 17, 2024, 11:38am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/2 "2024-12-17T11:38:38Z")
try 2.03.05, thats works for me without any problems. ---
**Author:** ![3DClouds](https://avatars.discourse-cdn.com/v4/letter/3/ee59a6/32.png) [@3DClouds](https://qa.fmod.com/u/3DClouds)\ **Post date:** [December 17, 2024, 12:19pm UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/3 "2024-12-17T12:19:03Z")
Currenlty 2.03 is in early access, we’d prefer to use the stable version at the moment, thanks ---
**Author:** ![Andrew](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/andrew/32/261_2.png) [@Andrew](https://qa.fmod.com/u/Andrew)\ **Post date:** [December 17, 2024, 10:08pm UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/4 "2024-12-17T22:08:57Z")
Thanks for the report, we’ll get a fixed build up shortly. ---
**Author:** ![Andrew](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/andrew/32/261_2.png) [@Andrew](https://qa.fmod.com/u/Andrew)\ **Post date:** [December 18, 2024, 3:22am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/5 "2024-12-18T03:22:43Z")
A fixed build is now available on the [Download page](https://fmod.com/download#fmodforunreal). Look for the “Patch 1” tag. Apologies for the inconvenience! ---
**Author:** ![3DClouds](https://avatars.discourse-cdn.com/v4/letter/3/ee59a6/32.png) [@3DClouds](https://qa.fmod.com/u/3DClouds)\ **Post date:** [December 18, 2024, 8:28am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/6 "2024-12-18T08:28:13Z")
Hi Andrew thank you! ---
**Author:** ![3DClouds](https://avatars.discourse-cdn.com/v4/letter/3/ee59a6/32.png) [@3DClouds](https://qa.fmod.com/u/3DClouds)\ **Post date:** [December 18, 2024, 11:39am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/7 "2024-12-18T11:39:28Z")
![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/2/2771c8dfd7c02cf1f6de3b1fb7436598932e4d26.png) sadly we are experiencing other error similar to the 5\_4 compile error we were seeing ---
**Author:** ![apfelbaum](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/apfelbaum/32/4843_2.png) [@apfelbaum](https://qa.fmod.com/u/apfelbaum)\ **Post date:** [December 18, 2024, 12:13pm UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/8 "2024-12-18T12:13:16Z")
What is your includeorder? i can recommend setting it to “latest” in the build settings. ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [December 18, 2024, 11:38pm UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/9 "2024-12-18T23:38:56Z")
Is this in a new or existing project? If you are upgrading FMOD from an older version, can you try completely deleting the plugin folders before importing the new ones? Are you able to share you entire build log? If you can [upload](https://www.fmod.com/profile#uploads) it to your profile I can look into it further. ---
**Author:** ![3DClouds](https://avatars.discourse-cdn.com/v4/letter/3/ee59a6/32.png) [@3DClouds](https://qa.fmod.com/u/3DClouds)\ **Post date:** [December 19, 2024, 2:04pm UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/10 "2024-12-19T14:04:09Z")
hi, yes we always totally replace the directories of FMOD in the plugin and also in the platform/plugins of the platform we cover switch,GDK,sony ps4&5 I also have cleaned all the intermediate I have upload the file log7.txt in your space thanks ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [December 20, 2024, 4:52am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/11 "2024-12-20T04:52:14Z")
Thank you very much for the info. I believe the issue is caused by having the FMOD Studio Integration in the ‘Engine/Plugins/’ folder directly. There appears to be an issue with this which may require investigation again (I did ask Epic about this when UE5 came out [here](https://forums.unrealengine.com/t/thirdparty-plugin-in-engine-directory-fails-compilation/570483)), but a workaround for it is to put the FMOD Studio folders in ‘Engine/Plugins/Marketplace/’. ---
**Author:** ![3DClouds](https://avatars.discourse-cdn.com/v4/letter/3/ee59a6/32.png) [@3DClouds](https://qa.fmod.com/u/3DClouds)\ **Post date:** [December 20, 2024, 10:43am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/12 "2024-12-20T10:43:37Z")
We tried to move FMOD into Marketplace sadly with no different result. Please we need a solution ASAP because this is blocking us and preventing to switch to 5.5 version. Many Thanks ---
**Author:** ![apfelbaum](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/apfelbaum/32/4843_2.png) [@apfelbaum](https://qa.fmod.com/u/apfelbaum)\ **Post date:** [December 20, 2024, 11:36am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/13 "2024-12-20T11:36:12Z")
Since I use FMOD with a C++ project I have to copy the plugin into my project/Plugins folder, else it never compiles. Idk why. Perhaps try that. ---
**Author:** ![Andrew](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/andrew/32/261_2.png) [@Andrew](https://qa.fmod.com/u/Andrew)\ **Post date:** [December 23, 2024, 1:39am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/14 "2024-12-23T01:39:08Z")
Does apfelbaum’s suggestion work for you? Try it in your project/Plugins folder? ---
**Author:** ![3DClouds](https://avatars.discourse-cdn.com/v4/letter/3/ee59a6/32.png) [@3DClouds](https://qa.fmod.com/u/3DClouds)\ **Post date:** [January 9, 2025, 3:29pm UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/15 "2025-01-09T15:29:08Z")
in the project plugins folder it seems is working but we were trying to have it in the prebuild installed engine version the one that you create like this ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/a/a421ac2801264cdc142f75e8cd59f8006464c6fd.png) and in this there is a lot of things that won’t compile as missing include etc ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/e/eef68ab9f5499e586dac287e0063d9059569bf95.png) this two include is just an example but there are a lot more that won’t works ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [January 17, 2025, 4:54am UTC](https://qa.fmod.com/t/unreal-engine-5-5-doesnt-compile/22419/16 "2025-01-17T04:54:38Z")
It looks like the `InstalledEngineBuild.xml` will always disable the use of Precompiled Headers by default, which is causing these errors as our integration relies on them. A workaround for this could be to add `-set:WithWin64NoPCH=false` to your command line build, which would allow the use of Precompiled Headers, but would do so for everything in the engine. I have created a task to investigate the possibility of removing the Precompiled Headers for a future release, but I am unable to give a timeframe on if/when that may happen.