Unable to cast COM object of type 'System.__ComObject'

Question

Hi Everybody,

 

I have a problem in my project. I coded an app that works like teamviewer. It is two side in project.(ClientSide and ServerSide) 

 

The problem is on my Client Side Project. My Codes are these :

 

 

public static RDPSession oturumum = null;

private static void GelenKisi(object Misafir)

{

IRDPSRAPIAttendee Misafirim = (IRDPSRAPIAttendee)Misafir;

Misafirim.ControlLevel = CTRL_LEVEL.CTRL_LEVEL_MAX;

}

public static void OturumOlustur()

{

oturumum = new RDPSession();

}

public static void Baglan(RDPSession oturum)

{

oturum.OnAttendeeConnected += GelenKisi;

oturum.Open();

}

public static void BaglantiKes(RDPSession oturum)

{

oturum.Close();

}

public static string BaglantiKodu(RDPSession oturum, String Kullanici, string Grup, string Parola, int BaglantiLimitim)

{

IRDPSRAPIInvitation Davet = oturum.Invitations.CreateInvitation(Kullanici,Grup,Parola,BaglantiLimitim);

return Davet.ConnectionString;

}

private void button1_Click(object sender, EventArgs e)

{

OturumOlustur();

Baglan(oturumum);

textBox1.Text = BaglantiKodu(oturumum,"UzakKullanici","UzakGrup","",1);

}

 

When I want to debug these codes on my client I take this error :

 

System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to interface type 'RDPCOMAPILib.RDPSession'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{FEE4EE57-E3E8-4205-8FB0-8FD1D0675C21}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).

 I googled for it many times but i couldnt solve the problem. Please help me.

 

Thanks..