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How to compile engine from project solution

Hello. I am very new still to fiddling with the cpp code for UE4. Currently, I made some changes to the Steamworks Leaderboard cpp file http://shootertutorial.com/2015/09/26/ue4-tips-online-leaderboards/ and I want to compile so that it will keep the highest score rather than adding the new score to the previous value.

After the changes, I right click UE4 on the solution explorer and press build. Very fast, it says 1 succeded. However, when I relaunch the uproject, package, and test the new steamworks. It still has the old behaviour.

If I try to right click on ue4, then go to debug>start new instance, I get an error. alt text

So, I think that something is wrong then. I tried to follow this guide, but I am stucked. https://docs.unrealengine.com/latest/INT/Programming/Development/BuildingUnrealEngine/


Product Version: UE 4.13
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asked Nov 02 '16 at 09:00 PM in C++ Programming

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avatar image Motanum Nov 02 '16 at 09:11 PM

I think it's related to this, But the answer doesn't explain how to solve that. https://answers.unrealengine.com/questions/252884/ue4-engine-project-wont-build.html

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Hey Motanum-

If you are using the Launcher version of the engine then making changes to the engine source code will not be possible as the Launcher uses pre-built binaries. If you would like to change the source code you can download and compile the engine manually from GitHub (https://github.com/EpicGames/Signup ) and then make changes as you see fit.


Doug Wilson

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answered Nov 03 '16 at 01:50 PM

avatar image Motanum Nov 03 '16 at 05:55 PM

Thanks! I managed to download and compile the engine, but I am having trouble adding a plugin that my project uses, before I merge my project to the new self-compiled engine.


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