.NET (Core and Framework)

An unhandled exception of type 'System.Runtime.Serialization.SerializationException' occurred in mscorlib.dll

Additional information: BinaryFormatter Version incompatibility. Expected Version 1.0.  Received Version 1008738336.1684104552.

<channels>
  <channel ref="http">
    <clientProviders>
      <formatter ref="binary" />
    </clientProviders>
    <serverProviders>
      <formatter ref="binary" />
      <provider ref="wsdl"/>
    </serverProviders>
  </channel>
</channels>

public void LoadAddins()
{
  IAddinManager manager = this;
  DirectoryInfo dirInfo = new DirectoryInfo(Environment.CurrentDirectory + @"\addins\");
  FileInfo[] fileInfo = dirInfo.GetFiles("*.dll");
  foreach(FileInfo fileInfo in Files)
  {
    Assembly assembly = Assembly.LoadFrom(fileInfo.FullName);
    try
    {
      Type[] types = assembly.GetExportedTypes();
      object addin = assembly.CreateInstance(types[0].FullName);
      if((null != addin) && (addin is TabPage))
      {
        ((MyAddin)addin).Manager = manager;  // ** Exception ** //
        this.tabControl.Controls.Add(addin as TabPage);
        this.addins.Add(addin as IBaseAddin);
      }
    }
    catch(Exception exc)
    {
      System.Diagnostics.Debug.WriteLine(exc.Message);
    }
  }
}