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

Development Platform & Builds
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1

Hi there! Could you send us the output from your message log please?

There are a few things that could be causing this - could you try all of the following and let us know if any of them fix the issue:

  1. Check that swarm is not already running
  2. Check that there is nothing on your machine that is bound to port 8008
  3. Check your PC name is not made entirely of numeric characters

Hopefully we can get this sorted out quickly for you!

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

3

4.1.1 is working fine.

For the first step i restart my computer and try to build again…
Second step i did a netstat -oan and nothing apeers to be bound to that port.
Third Step the pc name is:

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

Message log is empty!!

4

Hi,
I manually executed the swarn agent and its running, im not sure where to find the agent log.
But i got the output log (Attached)link text

5

Thanks, could you try running a swarm executable manually yourself and inspect the agent log for anything untoward please.

The exe can be found in Engine/Binaries/DotNET/SwarmAgent.exe

6

seems it worked, opening the swarm agent manually. I was busy looking for the agent log that forget to retry, now i just pressed build and its works!!!

7

Oh, great! I’m glad it’s working now, but I’m a bit confused as to how it couldn’t start up before you ran it manually :frowning:

The agent logs can be found in Engine\Saved\Swarm\SwarmCache\Logs. Could you please zip up all of those and post them here so we can see if there’s anything useful in there? Thanks!

8

link text
heres the logs, yes im confused 2, i reopen the editor and the swarm error persist until i open the swarm manually.

9

Hey, looking at the logs it seems there could be an problem with the swarm agent attempting to connect to an SQL database through a named pipe.

If you get the editor into the state where it can’t kick off swarm, then load up process explorer (download from here). Once running, choose Find->Find Handle or DLL. Type “\Device\NamedPipe\127.0.0.1” and hit search. If there is anything in the list could you please send us the output? Thanks!

10

i came across this problem aswell after i was asked to choose a ‘firewall’ option - i chose private networks instead of public. maybe this helps somehow :s