Object reference not set to an instance of an obje

[J Cullen]

I get the following error when running Model Expert.

[code]************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at Model_Expert.EARepository.makeInstanceMDEs(EAPackage p, ProfileGenerator pg)
at Model_Expert.MXModelAnalyser.addInstanceClassifiers(EAPackage p, ProfileGenerator pg)
at Model_Expert.MXModelAnalyser.runPackage(EAPackage analysisPackage, iNotifyForm parentWindow)
at Model_Expert.MXModelAnalyser.run(EAPackage analysisPackage, iNotifyForm parentToBeNotified)
at Model_Expert.ModelAnalyserController.run()
at Model_Expert.frmMXAnalyse.btStart_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, Int32 msg, IntPtr wparam, IntPtr lparam)
[/code]

[eadocX Support]

I think I need a bit more than this if I’m going to look into this.
What database? Do you have sample data you can send me ?

[J Cullen]

I have narrowed it down to a specific package and have been able to replicate the problem in a new model.
It happens every time the package you analyse has an object in it and it has a classifier selected for that object.

[eadocX Support]

Might be an inconsistency in the EA model.
Try exporting the package as XMI, deleting it in the model, and re-importing.

[J Cullen]

It also happens in a completely new .EAP file stored on my local desktop rather than any server database. It occurs with UML and SysML. You should be able to replicate it yourself by creating a class then creating an object as an instance of it.

[J Cullen]

I have attached an image of a diagram which model expert has this problem with.

[J Cullen]

Can you confirm that this is bug in Model Expert and it is intended to be fixed. Or that i am classifying objects incorrectly.

[eadocX Support]

Nothing you’re doing wrong – a bug in Model Expert 1.0 – this is fixed in 1.1, which I’m just finishing-off

[Author]

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