Using LLDBRPC, LLDB framework is from /Applications/Xcode.app/Contents/SharedFrameworks
Could not attach to pid : “52948”
Domain: IDEDebugSessionErrorDomain
Code: 3
Failure Reason: the platform is not currently connected
User Info: {
DVTRadarComponentKey = 855031;
IDERunOperationFailingWorker = DBGLLDBLauncher;
RawUnderlyingErrorMessage = “the platform is not currently connected”;
}
Along with the dithering-lod per material, I’ve noticed this black-vertex-glitch goes away when I disable Fast-Math intrinsics and optimizations in Project Settings > Platforms > Mac. Though obviously that’s not ideal for performance.
1 clone ue5-main in your mac and open the root folder on terminal
2 use command git checkout 40e3b5463fc9d157cad934e390936695a0625e21
3 open Setup.command file and wait done on root folder
4 open GenerateProjectFiles.command file and wait done
5 open UE5.xcworkspace with xcode 13.4.1
6 click on hammer and change build to New Build System
7 select ShaderCompileWorker/My Mac (not rosetta), CMD + B and wait build arm64
8 select UE5/My Mac (not rosetta), CMD + B to build UnrealEditor.app
9 open UnrealEditor.app from YOUR_GIT_CLONE/Engine/Binaries/Mac
That hadn’t been in the roadmap previously; I wonder how permanent of a solution they intend for that to be. Further, this makes me wonder more about comparability of marketplace content with ARM.
I expect what this means is just that Apple Silicon support will remain “experimental” for 5.1, and that it will become a launcher option at some point in the future. Initial compatibility isn’t going to be sufficiently stable, performant, or feature-complete to be the default.
Hi, this is almost working for me. I’ve gotten as far as Building UE5/MyMac but I’m getting this error: “linker command failed with exit code 1 (use -v to see invocation)” I have tried manually deleting derived files and Product>Clean Build Folder. I’m about to start over from the beginning, but I’m wondering if anyone has some more suggestions.
Anyone know how to get Rider to build for Apple Silicon? I can launch 5.1 from Xcode fine as a native app but when I launch from Rider its always Intel.
The 5.1 public branch built for me for arm using xcode 14.1 on Ventura 13.0.1 – Slight hiccup the build crashes xcode half way through but restarting and then continuing where it left off seems to have worked.
Unreal Engine 5.1 is out and according to the release notes:
Native Apple Silicon support is available for macOS targets for both editor and project builds. Editor support for Apple Silicon is experimental
Most plugins (Quixel?) are not working yet:
Some third-party SDKs and plugins do not yet contain ARM64 slices and may have compatibility issues.
Did anyone else try it out yet?
On my M1 Max build of ShadeCompileWorker took 78s. UE5 build errored after 38 minutes and showed: “unexpected service error: The Xcode build system has crashed. Build again to continue.” - BUT second try succeeded after 20s. Total folder size is now 133GB but I guess the source files can be deleted (it was 80GB?).
Didnt test UE 5.1 in detail yet but editor starts up after an endless time of “Compiling Shaders”. First person level has over 40FPS in full 4k.
BTW I recommend you guys to always install from tags that mark a specific commit as an official release. Dont use the branches directly, they are active development branch and the latest commit may or may not contain errors.
Clone 5.1 release (if you didnt clone the repo yet): git clone git@github.com:EpicGames/UnrealEngine.git --single-branch --depth 1 -b 5.1.0-release (with “–single-branch --depth 1” it goes super fast because it doesnt download the full git history and instead just the one commit that we want)
Pull 5.1 release (if you already cloned the repo): git checkout tags/5.1.0-release
Also after pulling the commit/tag you can delete the hidden .git folder to save 21GB if you dont plan to pull the next version version soon.
Anybody could see where that thread is, please kindly include it as a reply here. I’m also wanting to do UE 5.1 on my M1 Max, but experiencing issues as described by the TS.
I built UE 5.1 (as described above) but Global Illumination is not working at all for movable objects (neither with Lumen and Standalone Ray Traced). Further setting a light to static in Lumen results in no light at all and no GI.
Also point lights are not working at all. I described it in more detail here:
Anyone else having this problems with UE 5.1? And was it working before with 5.0.x?
Compatibility Notes
Unreal Editor
As of late 2021, Unreal Editor does not support the ARM64 architecture used by M1 Macs and newer. Instead, it relies on the Rosetta2 translator.
Future versions of Unreal Engine will introduce direct support for M1 Macs, but in the meantime, you should expect a performance impact when running Unreal Editor on M1 Macs and newer.
Unreal Engine Projects
Although Unreal Editor currently runs with Rosetta2, Unreal Engine can output packaged builds for projects with support for ARM64.
Note that the Epic Games launcher will continue to provide only the x86_64 binaries of Unreal Engine; users who want to try the arm64 version will need to build from source (https://github.com/EpicGames/UnrealEngine).
What does this mean and also ( the Github link isnt working clicked on it and it showed 404 error
