Lighting build failed. Swarm failed to kick off. compile unreal lightmass

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Lighting build failed. Swarm failed to kick off. compile unreal lightmass.
How to fix this?

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compile unreal lightmass

If you google this, you will find the info you need. Basically, you need to open Unreal in Visual Studio.

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Hi!

I’ve never seen it but two ideas:

  • maybe your firewall is blocking swarm
  • in Epic Game Launcher, where you see your version of Unreal Engine, try to Verify it
    image
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Google does not offer very much help in how to do this, especially if you are running Unreal from the launcher and not building from the source code.

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Old thread but I’m posting this for future readers. In the local Swam Agent interface on my computer > under “DeveloperSettings” tab, I had changed “LocalJobsDefaultProcessorCount” and “RemoteJobsDefaultProcessorCount” both to 0 because I wanted the Swarm farm to do all the processing so my local computer wouldn’t get bogged down. But when I did that, I got this error. I set those settings to 2 and it worked fine. So you need at least 1 processor to send the job to the Swarm farm. Hope that helps someone.