Hi! I’ve had this issue for a long time now, but i haven’t been able to find a solution for it online, so far!
I’m really hoping someone in here can help with it!
Lighting build fails, Swarm Agent outputs: [Interface:OpenJob] Error: Provider load failure
When i attempt to build any project in Unreal Engine 4.10 build finishes quickly with Navigation build completed, it does not start building lighting, not even if i build lighting only.
Swarm Agent is opened, as i can see icon in taskbar. I can open Swarm Agent just fine by double clicking on it.
Im attempting to build lighting for One computer only, which is one im working on.
I did not have this issue before, i dont know which version it was, or what happened. Its a long time ago when UE4 was a paid subscription based software.
Im not trying to get Swarm Agent to connect to anything. All Swarm Agent settings are default after a fresh reinstall.
Im gonna reproduce issue with default Blueprint FirstPerson Shooter Example Project, by placing a light in Example Map, and hitting build. Before i do so, i make sure any other instances of Swarm Agent, and Swarm Coordinator is closed, and then i manually open SwarmAgent.exe, and open Log tab, which outputs:
13:27:39: Starting up SwarmAgent ... 13:27:39: ... registering SwarmAgent with remoting service 13:27:39: ... registering SwarmAgent network channels 13:27:39: ... initializing SwarmAgent 13:27:39: ......... certificate check has failed 13:27:39: ...... initializing cache 13:27:39: ......... using cache folder 'D:\Program Files\Epic Games\4.10\Engine\Binaries\DotNET/SwarmCache' 13:27:39: ......... recreating SwarmAgent cache staging area 13:27:39: ...... initializing connection to SwarmCoordinator 13:27:39: ......... using SwarmCoordinator on RENDER-01 13:27:41: ......... SwarmCoordinator failed to be initialized 13:27:41: ...... initializing local performance monitoring subsystem 13:27:42: ... initialization successful, SwarmAgent now running
I then proceed to hit Build inside Unreal Engine 4.10. Swarm Agent clears current log, and outputs:
13:27:59: [Interface:TryOpenConnection] Local connection established 13:27:59: [Interface:OpenJob] Error: Provider load failure
NOTE: This was reproduced using default blueprint first person shooter example map
NOTE: Reproduced using a Single computer. Im not trying to have Swarm Agent connect to anything else. Im working and rendering on same computer.
Here is Swarm Agent Log file after reproducing issue!
I have attempted several things to get this working:
- I have double checked that i have latest .Net Framework 4.5.2 installed and activated on this computer! I have also attempted to install latest version of .Net Framework from
But because this is Windows 8.1, which comes with this .NET Framework, installer is telling me its already installed.
As far as i have seen, there is no way to uninstall or reinstall this .NET framework, because it is implemented into OS.
Screenshot - d10954b9740cafb60a799f0fa55dcddf - Gyazo
I fully reinstalled Unreal Engine by uninstalling Epic Games Launcher, and deleting anything associated with Unreal or Epic games in Program-Files and AppData. I also proceeded to remove all history of Unreal Engine, Swarm Agent and Swarm Coordinator from Windows Firewall and Windows Defender, to make sure i got prompted with Network Permissions when reinstalling Software!
I have made sure that i dont have any Anti-Virus software other than Windows Defender and Windows Firewall, and made sure that both Windows Firewall and Windows Defender is letting Swarm Agent, Swarm Coordinator and Unreal Engine through!
I have attempted to reproduce issue on another computer with a fresh and clean installation of windows, only having Unreal Engine 4.10 installed. build worked just fine, without any problems on the other computer, however that computer is not powerful and is not prefered when working.
I have tried other versions of Engine, aka: 4.9.2, 4.8.3 and 4.6.1 on my main computer, all of them are having same issue with Swarm Agent!
Made sure that Swarm Agent and Unreal Engine are running on default settings after reinstall.
Short video showing issue reproduction on both FPS Example map, and Default Map performed on main computer with all settings set to default with Example First Person Shooter Project.
Computer with issue: (Desktop PC)
Windows 8.1 64-bit Asus ROG Maximus VII Ranger Motherboard Intel Core i7-4790K LGA1150 Processor 16384MB RAM SSD 128GB (OS) HDD 2TB (Unreal Installation) NVIDIA GeForce GTX TITAN Black 3 Monitor setup: BenQ G2420HD x2 Asus ROG Swift PG278Q
Other Computer: (used for debugging) (Tablet PC)
Microsoft Surface-Pro 3 Windows 8.1 64-bit Intel Core i7 SSD 512GB (OS / Unreal Installation) 8GB Ram Intel Integrated Graphics
I’ve had this issue for some time now, and im out of ideas of how to fix this.
Im hoping someone in here can help me out!