Could not bind socket in Android when using Unity Transport package

Unity Engine
1

Hi, I am having problems when using transport package in android for my game client, it says the following exception:

AndroidPlayer(ADB@127.0.0.1:34999) Exception: Could not bind socket
  at Unity.Networking.Transport.BaselibNetworkInterface.Initialize (Unity.Networking.Transport.INetworkParameter[] param) [0x00107] in C:\workspace\NaiveNetworkGame\Client\Library\PackageCache\com.unity.transport@0.4.0-preview.3\Runtime\BaselibNetworkInterface.cs:197
  at Unity.Networking.Transport.NetworkDriver..ctor (Unity.Networking.Transport.INetworkInterface netIf, Unity.Networking.Transport.INetworkParameter[] param) [0x00079] in C:\workspace\NaiveNetworkGame\Client\Library\PackageCache\com.unity.transport@0.4.0-preview.3\Runtime\NetworkDriver.cs:480
  at Unity.Networking.Transport.NetworkDriver.Create (Unity.Networking.Transport.INetworkParameter[] param) [0x00001] in C:\workspace\NaiveNetworkGame\Client\Library\PackageCache\com.unity.transport@0.4.0-preview.3\Runtime\NetworkDriver.cs:454
  at Client.ClientNetworkSystem+<>c__DisplayClass0_0.<OnUpdate>b__0 (Unity.Entities.Entity e, Client.NetworkManagerSharedComponent managerSharedComponent, Client.ClientStartComponent& s) [0x00021] in C:\workspace\NaiveNetworkGame\Client\Assets\Scripts\Client\ClientNetworkSystem.cs:39
  at Unity.Entities.EntityQueryBuilder.ForEach[T0,T1] (Unity.Entities.EntityQueryBuilder+F_ESD`2[T0,T1] action) [0x000ea] in C:\workspace\NaiveNetworkGame\Client\Library\PackageCache\com.unity.entities@0.14.0-preview.18\Unity.Entities\EntityQueryBuilder_ForEach.gen.cs:2765
  at Client.ClientNetworkSystem.OnUpdate () [0x0000e] in C:\workspace\NaiveNetworkGame\Client\Assets\Scripts\Client\ClientNetworkSystem.cs:30
  at Unity.Entities.ComponentSystem.Update () [0x0005e] in C:\workspace\NaiveNetworkGame\Client\Library\PackageCache\com.unity.entities@0.14.0-preview.18\Unity.Entities\ComponentSystem.cs:107
  at Unity.Entities.ComponentSystemGroup.UpdateAllSystems () [0x0009c] in C:\workspace\NaiveNetworkGame\Client\Library\PackageCache\com.unity.entities@0.14.0-preview.18\Unity.Entities\ComponentSystemGroup.cs:513
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)

Sorry for sharing all my personal folders there :S

I checked the AndroidManifest and this permission is automatically added by Unity, so it shouldnt be the issue:

  <uses-permission android:name="android.permission.INTERNET" />

When I compile with IL2CPP, the exception is cleaner I believe:

8-26 22:22:05.044 15194-15211/com.Gemserk.NaiveNetworkGame.Client E/Unity: Exception: Could not bind socket
      at Unity.Networking.Transport.NetworkEndPoint.get_LoopbackIpv4 () [0x00000] in <00000000000000000000000000000000>:0
      at Unity.Networking.Transport.NetworkDriver.Create (Unity.Networking.Transport.INetworkParameter[] param) [0x00000] in <00000000000000000000000000000000>:0
      at Unity.Networking.Transport.NetworkDriver.Create (Unity.Networking.Transport.INetworkParameter[] param) [0x00000] in <00000000000000000000000000000000>:0
      at Client.ClientNetworkSystem+<>c__DisplayClass0_0.<OnUpdate>b__0 (Unity.Entities.Entity e, Client.NetworkManagerSharedComponent managerSharedComponent, Client.ClientStartComponent& s) [0x00000] in <00000000000000000000000000000000>:0
      at Unity.Entities.EntityQueryBuilder+F_ESD`2[T0,T1].Invoke (Unity.Entities.Entity entity, T0 s0, T1& d1) [0x00000] in <00000000000000000000000000000000>:0
      at Unity.Entities.EntityManagerManagedComponentExtensions.SetComponentData[T] (Unity.Entities.EntityManager manager, Unity.Entities.Entity entity, T compon

Hope you can help me, thanks!

2

Which INetworkParameter[ ] did you use if any?
How are you creating the NetworkDriver?
Is it working in the editor?
Which unity version are you on?

Try building it with burst turned off and see if that works, there used to be a bug with burst on on mobile in older versions.

3

@FakeByte thanks!! it was that, I disabled burst on Android and it worked :slight_smile:

I am using default INetworkParameter and creating NetworkDriver as explained in the docs, it works on editor and using Unity2020.2.0b1