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External Component has thrown an exception

whenever i set the CrystalReports ReportsDocument Objects SetDataSource()
method.. I recieve this error.

What might be the reason????

Please help
System.Runtime. InteropServices .SEHException: External component has thrown
an exception.
at PEGetNActiveJob s()
at
CrystalDecision s.CrystalReport s.Engine.Report Document.GetCon currentUsage()
at CheckLicenseSta tus()
at CrystalDecision s.CrystalReport s.Engine.Report Document.0(Str ing w,
OpenReportMetho d x, Int16 y)
at CrystalDecision s.CrystalReport s.Engine.Report Class.0(String O,
OpenReportMetho d P, Int16 Q)
at
CrystalDecision s.CrystalReport s.Engine.Report Document.SetDat aSource(Object
value)
at SukhdaHospital. IndoorBill.Save _Click(Object sender, EventArgs e) in
c:\documents and settings\manu singhal\my documents\visua l studio
projects\sukhda hospital\sukhda hospital\sukhda hospital\indoor bill.cs:line
1450
at System.Windows. Forms.Control.O nClick(EventArg s e)
at System.Windows. Forms.Button.On Click(EventArgs e)
at System.Windows. Forms.Button.On MouseUp(MouseEv entArgs mevent)
at System.Windows. Forms.Control.W mMouseUp(Messag e& m, MouseButtons
button, Int32 clicks)
at System.Windows. Forms.Control.W ndProc(Message& m)
at System.Windows. Forms.ButtonBas e.WndProc(Messa ge& m)
at System.Windows. Forms.Button.Wn dProc(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.OnMe ssage(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.WndP roc(Message& m)
at System.Windows. Forms.NativeWin dow.Callback(In tPtr hWnd, Int32 msg,
IntPtr wparam, IntPtr lparam)


Nov 15 '05 #1
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