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I'm using Visual Studio 2008 Express Edition, and I'm trying my hand in developing a small application using Oracle.DataClient. I'm getting the above mentioned error, when trying to connect to the database in the target system. I've added a reference to Oracle ODP.net provider for Oracle 10gR2, and in the target machine I have a copy of Oracle 10gR2 database installed. Despite this, I'm getting the error. Before posting this, I read this post at SO, and I have installed the instant client, the error persists. Below is the full error stack. ************** Exception Text ************** System.TypeInitializationException: The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception. ---> Oracle.DataAccess.Client.OracleException The provider is not compatible with the version of Oracle client at Oracle.DataAccess.Client.OracleInit.Initialize() at Oracle.DataAccess.Client.OracleConnection..cctor() --- End of inner exception stack trace --- at Oracle.DataAccess.Client.OracleConnection..ctor(String connectionString) at Employees1.frmLogin.oralogin() at Employees1.frmLogin.btnTest_Click(Object sender, EventArgs e) at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, In

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