Afterward, it will open and ask you to rebuild the project class, after which you can actually start working on your new project. Do not abort this build, or you will brick UE4 and will need to reinstall unreal-engine. If while trying to open the project in UE for the first time, you get a message about editor modules being out of date, you need to build the UE4Editor target in your IDE. ![]() The CPU usage should show that it is still compiling, and you may want to launch the editor from a console to see progress. ![]() After re-launching the editor, the new project shows up and can be opened, but on the first run, it takes a half-hour or so to compile, and since this happens in the background (no GUI) it might not seem to be doing anything. $ /opt/unreal-engine/Engine/Binaries/Linux/UE4EditorĪfter creating a code project, the new project opens in a text editor instead of in UE4Editor as it should. If the editor does not start from the menu, or something does not work right, start it in a console and check the output for errors. Once the package is installed, enable the optimization by setting the following environment variable : A patched version of glibc, glibc-dso AUR, can be used to alleviate this issue. Reason: glibc-dso has been removed because the fix is apparently now in the main package (Discuss in Talk:Unreal Engine 4) However, this might have some performance impact.Īnother approach would be to use different clang version (e.g. If the compilation fails you should try building the Editor using the Debug profile : (This does not include shaders compilation) The compilation can take from 20 minutes up to a few hours depending on your machine.Īs an example on a AMD FX-8350 (8 threads) with 16GB DDR3 on a SSD and Clang 3.8.1 takes roughly 40 minutes. Note that this link will not work unless you first follow the steps outlined above. Since the repository is private, you can set up an SSH key so your GitHub account is used to download the source.įor a smaller download you can use. This AUR package downloads ~10 GiB of source files plus ~5 GiB of dependencies. The package is ~70 GiB installed (after compiling shaders on first launch) and needs ~120 GiB to build with an output ABS package of ~9 GiB when compressed. # chmod -R a+rwX /opt/unreal-engine/Engine You might have to fix permissions for UE4 to precompile shaders on first launch: Unreal Engine 4 is available in the AUR as the unreal-engine AUR package. This will compile the Unreal Engine and the Unreal Editor. An invitation can be acquired by linking a github account to an Epic Games account. Please note: access to this private repository requires an invitation to the Epic Games Organization. You can get the most recent releases on GitHub as zips. Reason: Instructions differ greatly from the PKGBUILD in the AUR (Discuss in Talk:Unreal Engine 4) You can compile manually from a downloaded GitHub release or install from AUR. $ git clone -branch release -single-branch You will then receive an invite to access the private Github repository.įaster cloning only the desired branch. To gain access, login or register at Epic Games Accounts and provide an accessible GitHub username at the bottom of the Epic Games 'Connected Accounts Dashboard' page. ![]() The Unreal Engine source code is in a private Github repository requiring free registration with the developer (Epic Games) for access. 4.9 Blank window in Blueprint with multi-monitor configuration.4.5 Engine modules are out of date, and cannot be compiled while the engine is running.
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