I can't build the light "swarm"

hi i have this error i tried everything 4 days just googling nothing

message log

Error WorldSettings_1 Maps need lighting rebuilt
Info Map check complete: 1 Error(s), 0 Warning(s), took 32٫188ms to complete.

this swarm log

02:20:14 م: Starting up SwarmAgent ...
02:20:14 م:  ... registering SwarmAgent with remoting service
02:20:14 م:  ... registering SwarmAgent network channels
02:20:14 م:  ... initializing SwarmAgent
02:20:14 م:  ......... certificate check has failed
02:20:14 م:  ...... initializing cache
02:20:14 م:  ......... using cache folder 'C:/Users/Ali hero/AppData/Local/UnrealEngine/4.13/Saved/Swarm\SwarmCache'
02:20:14 م:  ......... recreating SwarmAgent cache staging area
02:20:14 م:  ...... initializing connection to SwarmCoordinator
02:20:14 م:  ......... using SwarmCoordinator on RENDER-01
02:20:16 م:  ......... SwarmCoordinator failed to be initialized
02:20:16 م:  ...... initializing local performance monitoring subsystem
02:20:16 م:  ... initialization successful, SwarmAgent now running
02:20:16 م: [Interface:TryOpenConnection] Local connection established
02:20:16 م: [Interface:OpenJob] Error: The service cannot be started, either because it is disabled or because it has no enabled devices associated with it. (Exception from HRESULT: 0x80070422)
02:49:42 م: [Connection] Detected new local connection from same process ID as an existing one, closing the old one
02:49:42 م: [CloseConnection] Closing connection 7AD775D9 using handle 7AD775D9
02:49:42 م: [CloseConnection] Connection confirmed for disconnection 7AD775D9
02:49:42 م: [CloseConnection] Closing orphaned Job ()
02:49:42 م: [CloseConnection] Connection disconnected 7AD775D9
02:49:42 م: [GetMessage] Safely returning to 7AD775D9 with no message
02:49:42 م: [Interface:TryOpenConnection] Local connection established
02:49:42 م: [Interface:OpenJob] Error: The service cannot be started, either because it is disabled or because it has no enabled devices associated with it. (Exception from HRESULT: 0x80070422)
02:49:42 م: [MaintainConnections] Local connection has closed (7AD775D9)
02:49:42 م: [MaintainConnections] Removed connection 7AD775D9
02:51:21 م: [Connection] Detected new local connection from same process ID as an existing one, closing the old one
02:51:21 م: [CloseConnection] Closing connection 2660ACE7 using handle 2660ACE7
02:51:21 م: [CloseConnection] Connection confirmed for disconnection 2660ACE7
02:51:21 م: [CloseConnection] Closing orphaned Job ()
02:51:21 م: [CloseConnection] Connection disconnected 2660ACE7
02:51:21 م: [GetMessage] Safely returning to 2660ACE7 with no message
02:51:21 م: [Interface:TryOpenConnection] Local connection established
02:51:21 م: [Interface:OpenJob] Error: The service cannot be started, either because it is disabled or because it has no enabled devices associated with it. (Exception from HRESULT: 0x80070422)
02:51:22 م: [MaintainConnections] Local connection has closed (2660ACE7)
02:51:22 م: [MaintainConnections] Removed connection 2660ACE7


pls help

win 8.1 64bit
ram 8gb
gtx 660 2gb

hdd 20 gb space for project and engine (alot ppl say that u need 5gb+ to bulid a light)

Hi Heroali,

You can try some of the suggestions in my Swarm Agent Troubleshooting Guide here: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums

If you’re getting a messages window that pops up with UE4 open and says “Lightmass Crashed” after building lighting you need to take a look at the following section: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums

The error message “Error WorldSettings_1 Maps need lighting rebuilt Info Map check complete:” is normal until your lighting has been built for the scene. It’s just indicating that there are assets in the world that have yet to have lighting built.

hdd 20 gb space for project and engine (alot ppl say that u need 5gb+ to bulid a light)

When people say you need a lot of space they are referring to RAM and not HDD space. Depending on the scene 8GB of RAM is low since it is split with the OS and whatever other programs you have opened at the time. If you’re getting a lightmass crash out of memory issue, this would be an indication that you need to increase your amount of RAM for your compture or reduce the lightmap sizes for your project to use lower resolutions and ultimately take up less RAM when computing them.

-Tim