Strange c# Error

[Daniel Reber]

I am getting a strange unhandeled exception message. The same code is
working on many serevrs but I am getting an error at this one. The server is
locked down security wise and many of the windows services are disabled. The
code and unhandeled exception message, is below.

Thanks

Dan Reber

try

{
//only open file if it exists
if (File.Exists(filePath + "ServerSettings.osl"))
{
ServerSettings server = new ServerSettings();
EncryptDecrypt cypher = new EncryptDecrypt();

//Open the serialized file.
Stream stream = File.Open(filePath + "ServerSettings.osl", FileMode.Open);
BinaryFormatter bformatter = new BinaryFormatter();

server = (ServerSettings)bformatter.Deserialize(stream);
stream.Close();

this.txtPath.Text = cypher.Decrypt(server.WatchPath); <-- Seems to be
failing here!
this.txtFile.Text = cypher.Decrypt(server.WatchFile);
this.txtSyntax.Text = cypher.Decrypt(server.ExeSyntax);
this.txtAcctFrom.Text = cypher.Decrypt(server.AcctFrom);
this.txtAcctName.Text = cypher.Decrypt(server.AcctName);
this.txtDatabase.Text = cypher.Decrypt(server.DatabaseName);
this.txtPassword.Text = cypher.Decrypt(server.AcctPassword);
this.txtServer.Text = cypher.Decrypt(server.ServerName);
this.txtSMTPServer.Text = cypher.Decrypt(server.SMTPName);

emailIsOk = ValidateEmailValues();
databaseIsOK = ValidateDBValues();
this.cmdOK.Enabled = emailIsOk & databaseIsOK;

}
}
catch(Exception eGet)
{
MessageBox.Show (this,"Error getting
settings.","PXPMonitorSetup",MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
eventLog1.WriteEntry(eGet.Message,
System.Diagnostics.EventLogEntryType.Error);
}
************** Exception Text **************
System.MissingMethodException: Method not found: System.String
PXP.JobLib.ServerSettings.get_WatchPath().
at PXP.Monitor.frmSettings.frmSettings_Load(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Mes sage& m)
at System.Windows.Forms.ContainerControl.WndProc(Mess age& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage (Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(M essage& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr
wparam, IntPtr lparam)