# Lighting not building. Swarm seems to be the cause **URL:** \ **Category:** Rendering\ **Tags:** swarm-agent, unreal-engine, lighting-problem, question\ **Created:** [March 19, 2015, 10:09pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775 "2015-03-19T22:09:58Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 19, 2015, 10:09pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/1 "2015-03-19T22:09:58Z")
Hi there. I am having trouble building my lighting in 4.7.3. It simply will not build at all. I get a Starting up Swarm Connection dialogue box for a split second followed by nothing. So far I have attempted: - Uninstalling and reinstalling twice - Making sure that firewalls are allowing swarm to load - Disabling firewalls completely and then trying a light build - Testing a light build in 4.6.1 (which works) - Testing build 4.7.3 on my work computer (which also works) This is what I get in the log for Swarm Agent 21:06:49: Starting up SwarmAgent … 21:06:49: … registering SwarmAgent with remoting service 21:06:49: … registering SwarmAgent network channels 21:06:49: … initializing SwarmAgent 21:06:49: … certificate check has failed 21:06:49: … initializing cache 21:06:49: … using cache folder ‘C:/Users//AppData/Local/UnrealEngine/4.7/Saved/Swarm\SwarmCache’ 21:06:49: … recreating SwarmAgent cache staging area 21:06:49: … initializing connection to SwarmCoordinator 21:06:49: … using SwarmCoordinator on RENDER-01 21:06:51: … SwarmCoordinator failed to be initialized 21:06:51: … initializing local performance monitoring subsystem 21:06:53: … initialization successful, SwarmAgent now running 21:06:58: [Interface:TryOpenConnection] Local connection established 21:06:58: [Interface:OpenJob] Error: Invalid namespace Any ideas on what is wrong here? Thanks for reading ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [March 20, 2015, 11:47am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/2 "2015-03-20T11:47:26Z")
Hi , the “Invalid namespace” looks like Windows WMI error. 1. Are you using sources or binary version of the engine? 2. Are you able to startup SwarmAgent.exe normally? Not through the editor? Thanks, ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 23, 2015, 10:33pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/3 "2015-03-23T22:33:10Z")
Hi , apologies for the late reply. I am able to open SwarmAgent.exe. How would I go about finding out if I’m using a binary version or sources? Thanks for getting back to me, ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [March 24, 2015, 7:04am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/4 "2015-03-24T07:04:21Z")
If you downloaded the engine through the Launcher you are using a binary one. If you synced the engine sources through GitHub and built it you are using sources. If you start SwarmAgent.exe normally (not from the editor) what is the log in there? ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 24, 2015, 10:48pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/5 "2015-03-24T22:48:36Z")
I downloaded it through the launcher so that’ll make it binary. This is what I got from the log from swarm.exe without launching the editor 22:45:50: Starting up SwarmAgent … 22:45:50: … registering SwarmAgent with remoting service 22:45:50: … registering SwarmAgent network channels 22:45:50: … initializing SwarmAgent 22:45:50: … certificate check has failed 22:45:50: … initializing cache 22:45:50: … using cache folder ‘C:\Program Files\Epic Games\4.7\Engine\Binaries\DotNET/SwarmCache’ 22:45:50: … recreating SwarmAgent cache staging area 22:45:50: … initializing connection to SwarmCoordinator 22:45:50: … using SwarmCoordinator on RENDER-01 22:45:52: … SwarmCoordinator failed to be initialized 22:45:52: … initializing local performance monitoring subsystem 22:45:52: … initialization successful, SwarmAgent now running ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 24, 2015, 10:50pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/6 "2015-03-24T22:50:23Z")
Also this is what I get when I try and build lighting: 22:49:26: [Interface:TryOpenConnection] Local connection established 22:49:26: [Interface:OpenJob] Error: Invalid namespace ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [March 25, 2015, 7:43am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/7 "2015-03-25T07:43:34Z")
Ok, so I’d like to ask you to try something: 1. Close all SwarmAgent.exe/SwarmCoordinator.exe instances. 2. Backup SwarmInterface.dll and SwarmInterface.pdb (if it exists) in your Engine\Binaries\DotNET. 3. Extract contents of attached file to Engine\Binaries\DotNET. 4. Open up SwarmAgent.exe. 5. Try to build lighting again. 6. Copy log from SwarmAgent.exe and paste it here. This will help me investigate as it is not happening here :(. Thanks, ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 26, 2015, 1:18am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/8 "2015-03-26T01:18:13Z")
Hi , I followed your steps. When I extracted the files you sent me into Engine/Binaries/DotNET I noticed that SwarmInterface.pdb was missing. This is the log I got from Swarm after a light build. 01:08:44: Starting up SwarmAgent … 01:08:44: … registering SwarmAgent with remoting service 01:08:44: … registering SwarmAgent network channels 01:08:44: … initializing SwarmAgent 01:08:44: … certificate check has failed 01:08:44: … initializing cache 01:08:44: … using cache folder ‘C:\Program Files\Epic Games\4.7\Engine\Binaries\DotNET/SwarmCache’ 01:08:44: … recreating SwarmAgent cache staging area 01:08:44: … initializing connection to SwarmCoordinator 01:08:44: … using SwarmCoordinator on RENDER-01 01:08:46: … SwarmCoordinator failed to be initialized 01:08:46: … initializing local performance monitoring subsystem 01:08:48: … initialization successful, SwarmAgent now running 01:10:26: [Interface:TryOpenConnection] Local connection established 01:10:27: [Interface:OpenJob] Error: Invalid namespace and… ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 26, 2015, 1:18am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/9 "2015-03-26T01:18:32Z")
Server stack trace: at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode) at System.Management.ManagementScope.InitializeGuts(Object o) at System.Management.ManagementScope.Initialize() at System.Management.ManagementObjectSearcher.Initialize() at System.Management.ManagementObjectSearcher.Get() at Agent.Agent.GetProcessPathById(Int32 ProcessID) at Agent.Agent.SetCurrentDirectoryByProcessID(Int32 ProcessID) at Agent.Agent.OpenJob\_1\_0(Int32 ConnectionHandle, Hashtable InParameters, Hashtable& OutParameters) at System.Runtime.Remoting.Messaging.StackBuilderSink.\_PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs) at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg) Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) at NSwarm.IAgentInterfaceWrapper.OpenJobDelegate.EndInvoke(Hashtable& OutParameters, IAsyncResult result) at NSwarm.IAgentInterfaceWrapper.OpenJob(Int32 ConnectionHandle, AgentGuid JobGuid) in d:\GitHub\UnrealEngine\release\UnrealEngine\Engine\Source\Editor\SwarmInterface\DotNET\SwarmInterface.cs:line 464 at NSwarm.FSwarmInterface.OpenJob(FGuid JobGuid) in d:\GitHub\UnrealEngine\release\UnrealEngine\Engine\Source\Editor\SwarmInterface\DotNET\SwarmInterface.cs:line 2006 ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [March 26, 2015, 8:08am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/10 "2015-03-26T08:08:31Z")
Hey, that may help! Could you verify WMI permissions for your account that SwarmAgent is running? Here is a tutorial how to set it: > **[Authorize WMI users and set permissions](https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc771551(v=ws.11)?redirectedfrom=MSDN)** Required namespace is: Root/CIMV2. I think minimum required permission is “Enable Account”, but if that won’t help you can experiment with full permissions. Let me know if that helps. Thanks, ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 26, 2015, 8:21pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/11 "2015-03-26T20:21:52Z")
There doesn’t seem to be a CIMV2 inside the Root folder ☹ ![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/9/c/89caba3ad553869910772644eaa1e83a73f39854.jpeg) ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [March 27, 2015, 9:58am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/12 "2015-03-27T09:58:44Z")
Hmm, so that’s basically our problem, cause Swarm is using it :(. This is OS specific, but I’ll try to look around what it means and if there are some workarounds. Thanks, ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [March 27, 2015, 11:43am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/13 "2015-03-27T11:43:47Z")
This page contains steps how to fix missing WMI namespaces: > **[Archived MSDN and TechNet Blogs](https://learn.microsoft.com/en-us/archive/blogs/)** You’re interested in Scenario 1, and missing namespace is CimV2. Please, let me know if that helped! Thanks, ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [March 30, 2015, 12:05pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/14 "2015-03-30T12:05:38Z")
I’m probably missing something simple here but I only got this far this morning. In the command prompt it says CimWin32.mof not found. These files do exist though in C:\Windows\System32\wbem ![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/3/6/9/36969c18917ec99b1cb7016a4928aed967f3355e.jpeg) Thanks, ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [March 31, 2015, 9:13am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/15 "2015-03-31T09:13:03Z")
TBH it’s a OS problem and I’m not really sure how to fix it. Could you try suggestions on [this](http://www.lansweeper.com/kb/47/How-to-repair-a-corrupt-WMI-installation.html) page? It seems like it solves similar problem. Thanks, ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [April 7, 2015, 10:42am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/16 "2015-04-07T10:42:11Z")
Hi , have you managed to fix your problem? It would be helpful if you could confirm what helped in your case if anyone else encounters it. Thanks, ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [April 7, 2015, 8:13pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/17 "2015-04-07T20:13:38Z")
Hey there sorry for the late reply. I tried the suggestions but no success. This is what happened with the script ![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/9/5/2953bb52a1b28a03c6e752cd4473e8acfdb80104.jpeg) And this is what happened with the second suggestion. ![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/c/d/4cdb01b9f0057ebe1eefe3d30daaf1c4ec16a9f4.jpeg) when running winmgmt.exe/standalonehost it says please stop and restart Winmgmt. I couldn’t find it, That’s as far as I could get with it as my understanding of these sort of things are practically non-existant. Thanks, ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [April 8, 2015, 8:37am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/18 "2015-04-08T08:37:55Z")
According to the forums CimV2 should be there on a healthy system. I’m affraid that we’re going to end up on some MS forums to resolve this. Anyway, could you try one more thing? I just realized that when you said that mofcomp.exe had reported that CimWin32.mof had been missing you had executed it from C:\Windows\system32. Could you try it again from C:\Windows\system32\wbem? Thanks, ---
**Author:** ![anonymous\_user\_a723da02](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a723da02](https://forums.unrealengine.com/u/anonymous_user_a723da02)\ **Post date:** [April 8, 2015, 8:37pm UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/19 "2015-04-08T20:37:55Z")
This is what I get when mofcomp.exe is executed from C:\Windows\system32\wbem ![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/9/e/b9e49cca4c6a2863f677ef4917f3cb5d40f33fd2.png) ---
**Author:** ![Jarek\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jarek\_1](https://forums.unrealengine.com/u/Jarek_1)\ **Post date:** [April 9, 2015, 8:45am UTC](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775/20 "2015-04-09T08:45:48Z")
Definitely we’re getting closer, cause on my machine it finishes with success. Are you doing it on console with elevated privledges (i.e. as administrator)? If not, please retry as admin. [Next page](https://forums.unrealengine.com/t/lighting-not-building-swarm-seems-to-be-the-cause/311775.md?page=2)