Bug DllNotFoundException: nanosockets assembly:<unknown assembly> type:<unknown type> member:(null)

The Unity Editor 2022.2.7f1 is unable to find the Dll with the following error:

> DllNotFoundException: nanosockets assembly:<unknown assembly> type:<unknown type> membernull)

It works only when I build a package and run it on a device (Android, PC). The library is enabled for the editor in settings (Unity studio restarted):



Full stacktrack:

DllNotFoundException: nanosockets assembly:<unknown assembly> type:<unknown type> member:(null)

Fusion.Sockets.NetAddress.CreateFromIpPort (System.String ip, System.UInt16 port) (at Fusion/Fusion.Sockets/NetAddress.cs:145)

Fusion.Sockets.NetAddress.Any (System.UInt16 port) (at Fusion/Fusion.Sockets/NetAddress.cs:116)

Fusion.NetworkRunner.StartGameModeCloud (Fusion.StartGameArgs args) (at Fusion/Fusion.Runtime/Runner/NetworkRunner.Matchmaking.cs:821)

UnityEngine.Debug:LogException(Exception)

Fusion.FusionUnityLogger:LogException(String, DefaultContext&, Exception) (at Assets/Photon/Fusion/Scripts/FusionUnityLogger.cs:143)

Fusion.Log:Exception(NetworkRunner, Exception) (at Fusion/Fusion.Common/Log.cs:138)

Fusion.<ShutdownWithException>d__315:MoveNext() (at Fusion/Fusion.Runtime/Runner/NetworkRunner.Matchmaking.cs:906)

System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1:Start(<ShutdownWithException>d__315&)

Fusion.NetworkRunner:ShutdownWithException(Exception)

Fusion.<StartGameModeCloud>d__314:MoveNext() (at Fusion/Fusion.Runtime/Runner/NetworkRunner.Matchmaking.cs:884)

System.Threading.Tasks.TaskCompletionSource`1:TrySetResult(Int16)

Fusion.Photon.Realtime.Async.OperationHandler:SetResult(Int16) (at Fusion/Fusion.Realtime/RealtimeExtensions/OperationHandler.cs:34)

Fusion.Photon.Realtime.Async.OperationHandler:OnJoinedRoom() (at Fusion/Fusion.Realtime/RealtimeExtensions/OperationHandler.cs:122)

Fusion.Photon.Realtime.MatchMakingCallbacksContainer:OnJoinedRoom() (at Fusion/Fusion.Realtime/Realtime/LoadBalancingClient.cs:4206)

Fusion.Photon.Realtime.LoadBalancingClient:OnEvent(EventData) (at Fusion/Fusion.Realtime/Realtime/LoadBalancingClient.cs:3240)

ExitGames.Client.Photon.PeerBase:DeserializeMessageAndCallback(StreamBuffer) (at C:/Dev/photon-sdk-dotnet/PhotonDotNet/PeerBase.cs:899)

ExitGames.Client.Photon.EnetPeer:DispatchIncomingCommands() (at C:/Dev/photon-sdk-dotnet/PhotonDotNet/EnetPeer.cs:577)

ExitGames.Client.Photon.PhotonPeer:DispatchIncomingCommands() (at C:/Dev/photon-sdk-dotnet/PhotonDotNet/PhotonPeer.cs:1771)

ExitGames.Client.Photon.PhotonPeer:Service() (at C:/Dev/photon-sdk-dotnet/PhotonDotNet/PhotonPeer.cs:1685)

Fusion.Photon.Realtime.LoadBalancingClient:Service() (at Fusion/Fusion.Realtime/Realtime/LoadBalancingClient.cs:1412)

Fusion.Photon.Realtime.FusionRelayClient:Update() (at Fusion/Fusion.Realtime/Client/FusionRelayClient.cs:234)

Fusion.CloudCommunicator:Service() (at Fusion/Fusion.Runtime/CloudServices/CloudCommunicator.cs:51)

Fusion.CloudServices:Update() (at Fusion/Fusion.Runtime/CloudServices/CloudServices.cs:175)

Fusion.NetworkRunner:Update() (at Fusion/Fusion.Runtime/Runner/NetworkRunner.cs:1316)

What did I miss in configuring this library usage in the editor?

 

same problem but in 2022.2.9f1

 

Can confirm: this "feature" is still present in 2022.3.3f1 LTS version
Hint: even if the same ("unfound") DLL is present in the Assets folder (sub folder) multiple times, unity doesnt yield the usual error for that - hence it seems that its not recognizing DLL-s in the Assets at all?

Anyone from Unity: do you have predictions whether this will be repaired before christmas 2024 or later.. maybe?

 

@masta-yoda @pokelocos @users_names did you have any luck resolving this, please?

We are having a similar problem when building as Dedicated Linux Server, if we use the API:

Code (CSharp):

1. NetAddress.Any(port)

we get:

Code (CSharp):

1. DllNotFoundException: nanosockets assembly:<unknown assembly> type:<unknown type> member:(null)

 

Update. Fusion SDK 1.18 has a new libnanosocket.so file specifically for Linux.

Adding this file fixed our issue.

 

Same problem here (DllNotFoundException: MyBasicDLL assembly:<unknown assembly> type:<unknown type> membernull)).
However, when I installed Visual Studio, it got fixed. It seems that my DLLs have dependencies that come from Visual Studio. I am still trying to figure out how to include those dependencies in my Build so that I can run my application on machines that don't have Visual Studio installed on them.

 

Update:
I inserted the command
dumpbin /dependents path_to_your_dll_file.dll
in Visual Studio Terminal, and it listed the DLL dependencies for your_dll_file.dll.
I searched for the DLLs in the standard Windows search bar.
I copied those files into my Unity project Assets/Plugins.
Now, I can run my application on other machines that don't have Visual Studio.

Credit: https://stackoverflow.com/questions/7378959/how-to-check-for-dll-dependency

 

Had the exact same problem. I have tried many different approaches without much success.

One thing I have discovered is that sometimes there is a crashed version of Unity running as a zombie background process and still holding a lock on this DLL. You can verify this using Process Explorer (download from https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer). From within Process Explorer, choose "Find" -> "Find Process or DLL" and in the dialog type "nanosockets.dll" and press the "Search" button. In many cases, this would show that a zombie instance of Unity.exe had the dll open.