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Home › Forums › Model Expert queries › Object reference not set to an instance of an obje

Viewing 8 posts - 1 through 8 (of 8 total)
  • Author
    Posts
  • 12 September 2017 at 12:43 pm #9507
    J Cullen
    Participant

    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]

    12 September 2017 at 12:47 pm #9508
    eadocX Support
    Participant

    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 ?

    12 September 2017 at 3:32 pm #9509
    J Cullen
    Participant

    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.

    12 September 2017 at 3:54 pm #9510
    eadocX Support
    Participant

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

    12 September 2017 at 4:00 pm #9511
    J Cullen
    Participant

    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.

    19 September 2017 at 10:40 am #9512
    J Cullen
    Participant

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

    18 October 2017 at 2:18 pm #9513
    J Cullen
    Participant

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

    20 October 2017 at 11:12 am #9514
    eadocX Support
    Participant

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

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