[BUG] Unreal Editor 4.2.1: "Light Build Failed. Swarm failed to kick off." Win8.1

Development Getting Started & Setup
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1

While trying to build ligths.

8984-bugswarn.jpg
8984-bugswarn.jpg1360×768 241 KB

System specs:
Intel Core i7 CPU 920
4 GB ram
Windows 8.1 Pro
GeForce GTX 650

2

Always happend if i open the 4.2.1. editor regardless the project… 4.1.1 is working fine.

3

Thank you for your report. I will begin investigation into this issue as soon as possible. If I am unable to reproduce the problem, or I need more information, I or another staff member will follow up with some additional questions for you. Otherwise, I will post an ‘Answer’ once I have logged the issue in our bug database or we have a solution for it.

In the meantime, please be sure to review our suggestions for how to report a bug, and feel free to edit your post if you have additional information to provide:

Thank you.

Ketchum

4

Hi son1cman -

Are you using the binary Launcher version or a compiled GitHub version of the engine?

Thank You

Ketchum

5

binary Launcher, i got a temporary solution by executing manually the swarn agent, it seems to works, just for every time i open a project i need to do it manually

6

Hi son1cman -

Odd question, but what is the name of your computer according to windows? There is a know bug that exists if you CPU has a name that only contains numbers where Swarm Agent will not run.

Ketchum

7

Hi son1cman -

I haven’t heard from you in a while, so I am going to accept this as an answer for tracking purposes, but if this problem has persisted or returns please feel free to answer my previous question and we will continue to look for a solution.

Thank You

Ketchum

8

last week it keeps me kicking off

9

Hey son1cman -

Can you let me know the name of your CPU according to Windows? And let me know if you can upgrade to 4.3 and whether that fixes any issues?

Thank You -

Ketchum

10

I was thinking on subscribe again but honestly im not sure if this error will be fixed for me(1 month now) Version 4.1 works fine,the cpu is Intel Core i7 CPU 920 4 GB ram Windows 8.1 Pro GeForce GTX 650

11

Hey son1cman -

Can you please let me know what the name of your CPU is according to Windows? Or, does it begin with a number, special character, space or underscore? Do you have any Antivirus programs or firewall programs installed and running on your CPU? Have you made any edits to the Windows\system32\drivers\etc\hosts file on your CPU?

Thank You

Ketchum