NewFamilyInstance(Other familyinstance, Curve Other familyinstane, Symbol) Is it

[Anonymous]

Is it possible to insert a family (Based on LocationCurve) at the same point and with the same LocationCurve from another?
Also based on LocationCurve

I get the FamilyInstance Line with FamilyInstance.GetReferences (FamilyInstanceReferenceType.WeakReference) .First
But then I don't recognize the reference to use it (It's Nothing) or the line with respect to another reference of the Reference Plane (Indicates that the line is not in the reference)

This would be the correct method:
Document.Create.NewFamilyInstance (reference, line, symbol)

How do I get the reference from the other family?
I already get the line with GetReferences. But I don't get the right reference.

[jeremytammik]

I assume that you have verified that what you wish to achieve can be done manually through the end user interface, yes?

Maybe you can get a more useful reference from the element geometry using ComputeReferences = true?

[josealberto.torres]

'I have tried to get the plane from the geometry (ComputeReferences = True) with GetFamilyReferenceByIndex And,
'get line from WeakReference and convert as line.
'if it refPlano is Nothing, get it from FamilyInstance.References (Not is Nothing):

Dim refPlane As Reference = utilesRevit.GetFamilyReferenceByIndex(oFO, 2)
If refPlane Is Nothing Then
 refPlane = oFO.GetReferences(FamilyInstanceReferenceType.CenterFrontBack).FirstOrDefault
End If
Dim ref As Reference = oFO.GetReferences(FamilyInstanceReferenceType.WeakReference).First
Dim lin As Line = CType(oFO.Document.GetElement(ref).GetGeometryObjectFromReference(ref), Line)

' oFOS is The FamilySymbol load 
Dim oFF as FamilyInstance = evRevit.evAppUI.ActiveUIDocument.Document.Create.NewFamilyInstance(refPlane, lin ,oFOS)

' Error:
' {"Family cannot be placed on this line as it does not coincide with the input face." & vbCrLf & "Parameter name: multiple"}e.

[josealberto.torres]

oFO is FamilyInstance Original.