Lunchbox "Curves.ShortestWalk" does not work?

Hi guys,

When following @Dieter_Vermeulen tutorial upon how to use the node “Curves.ShortestWalk” from the Lunchbox package i get this message:

*Warning: Curves.ShortestWalk operation failed. *
Method not found: ‘Autodesk.DesignScript.Geometry.PolyCurve Autodesk.DesignScript.Geometry.PolyCurve.ByJoinedCurves(System.Collections.Generic.IEnumerable`1<Autodesk.DesignScript.Geometry.Curve>, Double)’.

Any ideas why this is happening?

First I did it in Dynamo 2.0, but i did not work… For troubleshooting I created it in Dynamo 1.3, it seemed to work for others on the forum, but I can’t figure it out…

@Dieter_Vermeulen did the tutorial in Revit 2017, but i have Revit 2018. Could this be the issue?

I hope some of you have the time to help :slight_smile:

Thanks in advance!

Here’s a screenshot

are you using the latest lunchbox that matches the same version of Dynamo you are using? I believe that method (polycurve with tolerance only exists in dynamo 2.x)