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Why is my UE4 version 4.13.1 failing to launch?

I have tried testing my game on android and have been having some issues... at one point I restarted the epic games launcher and now version 4.13.1 does not work. Every time I try loading it it says 'failed to launch'... I have verified the files and I have reinstalled the version completely after removing it... it still will not launch. My project is made within version 4.13.1 and therefore I can not even load my project up... I tried converting the project to an older version but it doesn't work (everything is just black).

Any ideas what I can try?


Product Version: UE 4.13
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asked Oct 17 '16 at 12:20 AM in Bug Reports

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avatar image Tommow Oct 17 '16 at 12:23 AM

Just to add... when I try to launch my project in version 4.12.5 my map does not load... so I need to get version 4.13.1 working again before I can continue with my project. Any help would be much appreciated. Thanks again.

avatar image Tommow Oct 17 '16 at 12:27 AM

When I try to launch 4.13.1 I get error code LS-0013.

I would supply a log but I am unsure where that is located.

avatar image Speckulous Oct 17 '16 at 06:33 AM

Start it via terminal. https://docs.unrealengine.com/latest/INT/GettingStarted/RunningUnrealEngine/

Simply add >>log.txt and you got the output in log.txt

avatar image Tommow Oct 17 '16 at 04:15 PM

I followed that link and I launched the ue4 editor from the win64 folder... I then was able to open my project with no issue. I have made a shortcut to that ue4 editor so I will have to use that from now on as the launch in the epic games launcher does not work at all... it fails to launch version 4.13.1.

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Hi Tommow,

I'm sorry that you are having an issue with the Unreal Engine 4 Launcher. In order to offer the best support, we have recently modified the troubleshooting process for Launcher specific issues.

Please visit: http://help.epicgames.com/

This link provides information and solutions for common issues, as well as contact information should you require additional assistance.


Steve H.

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answered Oct 18 '16 at 02:35 PM

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