- 29 times out of 30, a content pack will work just fine with a newer version of the engine. To add it to a project, click 'add to project,' then in the add dialog box, check the 'show all projects' checkbox, choose your (newer) project, and then select the latest available version number to actually add.
- What is the latest version of Unreal Engine 4 that my MacBook Pro from late 2011 can run? 0 I have a MacBook Pro from late 2011 and want to know which version of UE4 my laptop will be able to run.
Unreal Engine 4 is the latest version of the videogame Engine Created By Epic Games
The content of this article was originally written on Unreal Engine wiki and adapted specifically for Arch Linux.
Prerequisites
See Recommended Hardware.
Gain access to the source code
The Unreal Engine source code is in a private Github repository requiring free registration with the developer (Epic Games) for access[1].
When you open the Launcher, go to your library Tab. At the top you should see Engine Versions, and next to that you will see a Plus Icon with Add Versions next to it. Clicking that link will give you the option to install a new version of the engine, it should default to 4.8.2 as the icon appears below where you clicked. Epic Games has released Unreal Engine 4.26, which includes new tools for crafting believable real-time environments and characters for games, film and television and also offers advances in Unreal's virtual-production toolset, higher-quality media output and improved design-review tools.
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. You will then receive an invite to access the private Github repository.
Compilation
You can compile manually from a downloaded GitHub release or install from AUR.
Compile manually from source code
You can get the most recent releases on GitHub as zips.
Setup:
Generate project files:
Then compile:
This will compile the Unreal Engine and the Unreal Editor.
Installing from the AUR
Unreal Engine 4 is available in the AUR as the unreal-engineAUR package. You might have to fix permissions for UE4 to precompile shaders on first launch: sudo chmod -R a+rwX /opt/unreal-engine/Engine.
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. This AUR package downloads ~10 GiB of source files plus ~5 GiB of dependencies.
Since the repository is private, you can set up an SSH key so your GitHub account is used to download the source.
For a smaller download you can use .zip releases as a source for PKGBUILD. Note that this link will not work unless you first follow the steps outlined above.
Compilation time
The compilation can take from 20 minutes up to a few hours depending on your machine.As an example on a AMD FX-8350 (8 threads) with 16GB DDR3 on a SSD and Clang 3.8.1 takes roughly 40 minutes. (This doesn't include shaders compilation)
Troubleshooting
Compilation problems
Real Engine 4 Download
If the compilation fails you should try building the Editor using the Debug profile[2]:
However, this might have some performance impact.
Another approach would be to use different clang version (e.g. 3.8 or 4.0)
Runtime problems
If the editor doesn't start from the menu, or something doesn't work right, start it in a console and check the output for errors.
C++ code project problems
After creating a code project, the new project opens in a text editor instead of in UE4Editor as it should. 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. The CPU usage should show that it's still compiling, and you may want to launch the editor from a console to see progress.
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. Do not abort this build, or you will brick UE4 and will need to reinstall unreal-engine. Afterwards, it will open and ask you to rebuild the project class, after which you can actually start working on your new project.
Note that completing both of these rebuilds can very well take over an hour, depending on your system specs.
Disable Tooltips
UE4's mouse-over tooltips might be rendered very slow. They can be disabled by adding to
Random freeze under KDE
Disable index file content in the KDE file search options.
Slow rendered tooltips in KDE
Epic suggest to allow compositing for the Unreal Editor, which is stopped by default. Source: https://www.ue4community.wiki/Legacy/Linux_Known_Issues#KDE
Blank window in Blueprint with multi-monitor configuration
For fix big blank window go to Edit Preferences -> User interface -> Enable Window Animation and activate the checkbox
Additional Content
Starter Content
The StarterContent project is installed to /opt/unreal-engine/Samples/StarterContent/StarterContent.uproject, you can browse to it from the launcher.
Marketplace Apps
The launcher with the Unreal Marketplace is not available for Linux yet[3], so apps like the ContentExamples project cannot be installed from Linux[4].
The marketplace apps can be downloaded using the launcher on Windows (or Mac), they are stored in:
Also there is an implementation of UE4 Marketplace Downloader written in JS.
With every new Unreal Engine 4 version update, we get new features, improvements and fixes.
For a few of my projects I decided it is time to update to the latest UE4 engine version.
In this tutorial you will learn how to convert/update an older project that was created in the previous version of UE4 to the latest version of UE4.
For example, you have a project started and worked on in 4.5 but want to update this project to use 4.8.
All options below will work with Blueprint projects. I haven't tested these options with C++ code. If you have updated to a new version while using C++, please let me know with a how-to description and I will add it to this tutorial with credit to you.
So here are few ways to update your current project to a new Unreal Engine version.
Unreal Engine 4 Download Apk
Option #1:
Launch the latest UE4 version by clicking 'Launch Unreal Engine # Version' icon at the top left:
This will open Unreal Project Browser. Under the Projects tab you will see all of your projects. Projects that do not match the UE4 version you have opened will be grayed out:
Select the project you want to update and click Open. You can also double click the thumbnail to open.
This will open a Convert menu. Select 'Open a Copy':
This will convert the project to a new UE4 version and leave a copy behind of the old version. This is the best option to use; since it leaves a back-up just in case something goes wrong during conversion or your project doesn't work as intended in the new UE4 version.
You can also click 'More Options' and choose 'Convert In Place', but this will not create a copy behind to revert back to:
Best and most recommended option is to choose 'Open a Copy'.
Click OK and Unreal Engine will convert the project a new updated engine version and launch the editor. Once you know everything works, you can delete the old project folder.
Option #2:
Go to Project location where you project is being stored by right-clicking the thumbnail and choose 'Show in Folder':
Right click on .uproject file and choose 'Switch Unreal Engine Version':
Use drop down menu and choose Unreal Engine Version to convert to:
It is not recommended to ever downgrade a project to an older UE4 version. Always upgrade to a new version. Using this option will convert a project in-place. It does not leave a copy behind in-case you need it if something goes wrong.
I have used this option couple of times but I wouldn't recommend it for important projects.
Option #3:
The last option can be used if you already have a project opened. This project should be the latest Unreal Engine version you want to convert the project to.
In the editor, go to File > Open Project:
This will launch Unreal Project Browser.
You will see all of your projects, old and current. Choose the project you want to update. You can double click the thumbnail or select thumbnail and click open:
Select 'Open a Copy':
This will convert the project to a new UE4 version and leave a copy behind of the old version as back-up.
Latest Version Of Unreal Engine 4.6
Read Next: UE4 How to Change/Move Project Folder to New Location Directory
