.NET Remoting on Mono: Uri already in use

Running:

Ubuntu 13.10, 64-bit
Mono JIT compiler version 2.10.8.1
I have an application developed in VS 2008 that uses .NET remoting. We are trying to run this on Ubuntu/Ubuntu Kylin now, but I am receiving the following error.

Code

    //RemotingConfiguration.Configure(Application.ExecutablePath + ".config", false);该行Mono Migration Analyzer检测不过
RemotingConfiguration.Configure(Application.ExecutablePath + ".config");
//RemotingConfiguration.CustomErrorsMode = CustomErrorsModes.Off;该行Mono Migration Analyzer检测不过 
RemotingConfiguration.CustomErrorsEnabled(false);               
// Create and marshal an object for remote invocation.
_RemotingServer = new RemotingServer();
//注册Client
_RemotingServer.KeepAliveClient = new delClientInfo(KeepAliveClient);
_RemotingServer.AddClient = new delClientInfo(AddClient);
_RemotingServer.RemoveClient = new delClientInfo(RemoveClient);
obj = RemotingServices.Marshal(this._RemotingServer, "RemotingServer");

causing exception:
System.Runtime.Remoting.RemotingException: Uri already in use:

 <!--Remoting 设置-->
    <system.runtime.remoting>
        <customErrors mode="off"/>
        <application>

      <service>
                <wellknown mode="Singleton" objectUri="RemotingServer" type="EquipsLib.RemotingServer,EquipsLib" />
            </service>

      <channels>
                <channel name="MyChannel" port="8090" ref="http">
                    <serverProviders>
                        <provider ref="wsdl"/>
                        <formatter ref="binary" typeFilterLevel="Full"/>
                    </serverProviders>
                    <clientProviders>
                        <formatter ref="binary"/>
                    </clientProviders>
                </channel>
            </channels>
        </application>
    </system.runtime.remoting>
</configuration>


Any ideas on this problem? Thanks!