So, I got NL earlier this week and today I updated to the new SimPE version.

I did a base update at first, then when that didn't work, I uninstalled the program and anything associated with it (except Sims2 that is).

I was using the neighborhood browser to select my newly created NL family via the "family ties" and I got the following message after it loaded.

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Message:
Object reference not set to an instance of an object.

SimPE Version:
Default (0.48.2080.40597).

Exception Stack:
System.NullReferenceException: Object reference not set to an instance of an object.
at SimPe.PackedFiles.Wrapper.FamilyTieGraph.UpdateGraph(SDesc sdsc, ExtFamilyTies famt)
at SimPe.PackedFiles.UserInterface.FamilyTiesForm.pool_SelectedSimChanged(Object sender, Image thumb, SDesc sdesc)
at SimPe.PackedFiles.Wrapper.SimPoolControl.eip_GotFocus(Object sender, EventArgs e)
at Ambertation.Windows.Forms.Graph.GraphItemBase.OnGotFocus(EventArgs e)
at Ambertation.Windows.Forms.Graph.RoundedPanel.OnGotFocus(EventArgs e)
at Ambertation.Windows.Forms.Graph.DragPanel.SetFocus(Boolean val)
at Ambertation.Windows.Forms.GraphPanel.set_SelectedElement(GraphPanelElement value)
at SimPe.PackedFiles.Wrapper.SimPoolControl.UpdateContent()
at SimPe.PackedFiles.Wrapper.SimPoolControl.set_Package(IPackageFile value)
at SimPe.PackedFiles.UserInterface.ExtFamilyTies.UpdateGUI(IFileWrapper wrapper)
at SimPe.Interfaces.Plugin.AbstractWrapper.RefreshUI()
at SimPe.Interfaces.Plugin.AbstractWrapper.LoadUI()
at SimPe.ResourceLoader.Present(IScenegraphFileIndexItem fii, IFileWrapper wrapper, Boolean overload)

Source:
simpe.sims

Execution Stack:
at SimPe.PackedFiles.Wrapper.FamilyTieGraph.UpdateGraph(SDesc sdsc, ExtFamilyTies famt)
at SimPe.PackedFiles.UserInterface.FamilyTiesForm.pool_SelectedSimChanged(Object sender, Image thumb, SDesc sdesc)
at SimPe.PackedFiles.Wrapper.SimPoolControl.eip_GotFocus(Object sender, EventArgs e)
at Ambertation.Windows.Forms.Graph.GraphItemBase.OnGotFocus(EventArgs e)
at Ambertation.Windows.Forms.Graph.RoundedPanel.OnGotFocus(EventArgs e)
at Ambertation.Windows.Forms.Graph.DragPanel.SetFocus(Boolean val)
at Ambertation.Windows.Forms.GraphPanel.set_SelectedElement(GraphPanelElement value)
at SimPe.PackedFiles.Wrapper.SimPoolControl.UpdateContent()
at SimPe.PackedFiles.Wrapper.SimPoolControl.set_Package(IPackageFile value)
at SimPe.PackedFiles.UserInterface.ExtFamilyTies.UpdateGUI(IFileWrapper wrapper)
at SimPe.Interfaces.Plugin.AbstractWrapper.RefreshUI()
at SimPe.Interfaces.Plugin.AbstractWrapper.LoadUI()
at SimPe.ResourceLoader.Present(IScenegraphFileIndexItem fii, IFileWrapper wrapper, Boolean overload)

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So, if there is a way to fix this, please work on it.

Thanks