This is an interesting error that I won't likely find repeatable on command. I'm using MicroStation V8i SS4, 8.11.09.832 and Geopak 8.11.09.878.
Following an error message of unknown provenance, I can do anything I want with the mouse cursor and there is no error, except that when I move the cursor over Project Explorer, it will come up with this unhandled exception. If I leave the mouse cursor there and use the keyboard to press the continue button, the exception message comes up immediately without touching the mouse at all. This even happens if another window has focus and I move the cursor over the Project Explorer.
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at Bentley.Civil.CadSystem.Microstation.MstnNavObject.GetName(NavigatorNode nodeIn)
at Bentley.Civil.CadSystem.Microstation.MstnNavObject.GetDisplayName(NavigatorNode nodeIn)
at Bentley.DesignExplorer.NavigatorNode.get_DisplayName()
at Bentley.DesignExplorer.NavigatorNode.get_ToolTip()
at Bentley.DesignExplorer.NavigatorTree.MouseMoveCallback(Object senderIn, MouseEventArgs eventArgsIn)
at System.Windows.Forms.Control.OnMouseMove(MouseEventArgs e)
at Bentley.UI.Controls.WinForms.MultiSelectTreeView.OnMouseMove(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseMove(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.TreeView.WndProc(Message& m)
at Bentley.UI.Controls.WinForms.MultiSelectTreeView.WndProc(Message& messageIn)
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)
It may be worth mentioning that after I did File > Project Explorer, it refreshed the panel and I can use it just fine without having closed the program.
