IL2CPP Android - behaviour could not be instantiated! problem

Hello everyone,

In my android application, I am using log4net.dll for logging and I am using il2cpp scripting backend. However, when I run the application logger does not work and in the android logs I see that

 The script behaviour 'Log4NetConfig' could not be instantiated!
                                         System.Diagnostics.StackTrace:init_frames(Int32, Boolean)
                                         UnityEngine.StackTraceUtility:ExtractStackTrace()
                                         System.Collections.Generic.HashSet`1:GetEnumerator()

I don't know how to debug this. When I use mono it works fine. But it does not work with IL2CPP. log4net.dll is a managed dll.

I appreciate any help.

And this is the script using UnityEngine; using System.Collections;

 using log4net.Layout;
 using log4net.Appender;
 using log4net.Config;
 public class Log4NetConfig : MonoBehaviour
 {
 
     static Log4NetConfig instance;
 
     private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); //
 
     void Awake()
     {
 
         if (instance == null)
         {
             instance = this;
         }
         Log4NetConfig[] instances = GameObject.FindObjectsOfType<Log4NetConfig>();
         if (instances.Length > 1)
         {
             for (int i = 0; i < instances.Length; i++)
             {
                 if (instances[i] != instance)
                     Destroy(instances[i].gameObject);
             }
         }
         DontDestroyOnLoad(this);
 
         ConfigureAllLogging();
 
         
     }
     void OnEnable()
     {
         Application.logMessageReceivedThreaded += instance.OnApplicationLog;
     }
     void OnDisable()
     {
         Application.logMessageReceivedThreaded -= instance.OnApplicationLog;
     }
 
 
 
     void OnApplicationLog(string logString, string stackTrace, LogType type)
     {
         switch (type)
         {
             case LogType.Warning:
                 log.Warn(logString + " --- " + stackTrace);
                 break;
             case LogType.Assert:
                 log.Fatal(logString + " --- " + stackTrace);
                 break;
             case LogType.Error:
             case LogType.Exception:
                 log.Error(logString + " --- " + stackTrace);
                 break;
             case LogType.Log:
                 log.Debug(logString + " --- " + stackTrace);
                 break;
         }
 
     }
 
 
     /// <summary>
     ///  Configure logging to write to Logs\EventLog.txt and the Unity console output.
     /// </summary>
     public static void ConfigureAllLogging()
     {
 
         var patternLayout = new PatternLayout
         {
             ConversionPattern = "%date %-5level %logger - %message%newline"
         };
         patternLayout.ActivateOptions();
 
         // setup the appender that writes to Log\EventLog.txt
         var fileAppender = new RollingFileAppender
         {
             AppendToFile = false,
             
             File = Application.persistentDataPath + "/EventLog.txt",
             Layout = patternLayout,
             MaxSizeRollBackups = 3,
             MaximumFileSize = "10MB",
             RollingStyle = RollingFileAppender.RollingMode.Size,
             StaticLogFileName = true
         };
 
 #if UNITY_EDITOR
         var unityLogger = new UnityAppender
         {
             Layout = new PatternLayout()
         };
         unityLogger.ActivateOptions();
         fileAppender.Threshold = log4net.Core.Level.All;
         fileAppender.ActivateOptions();
         BasicConfigurator.Configure(unityLogger, fileAppender);
 #else
         fileAppender.Threshold = log4net.Core.Level.All;
         fileAppender.ActivateOptions();
         BasicConfigurator.Configure(fileAppender);
 #endif
     }
 }