Grasshopper

algorithmic modeling for Rhino

Kangaroo 2 showing up red

Daniel,

After successfully installing K2 and going through your examples, things went wrong. Whatever I hook up the the Kangaroo engine, it turns red and gives the following warning:

1. Solution exception:Unable to cast object of type 'Grasshopper.Kernel.Types.GH_Curve' to type 'Grasshopper.Kernel.Types.GH_ObjectWrapper'.

The curious part of this it that if I load one of the example files, they work as expected.

Since I have had initial success with my own definitions only to have this recent problem after doing nothing in particular to change things, I am hoping you have advice.

Thanks as always,

Robin

Views: 586

Replies to This Discussion

Permalink Reply by Daniel Piker on March 30, 2015 at 8:25am

Hi Robin,

Can you post one of your definitions that is producing this error?

Permalink Reply by Robin Dripps on March 30, 2015 at 8:33am

Daniel,

Here is my version of one of your early examples.  I also noticed that when opening an example file that worked, when I copied and pasted the Kangaroo engine attached to all of your inputs exactly the same, that it also turned red. I hope this helps,

Robin

Attachments:
Permalink Reply by Daniel Piker on March 30, 2015 at 8:44am

You have a curve object going into the GoalObjects input.  

If you want to fix the length of the curve, use a Length Goal component.

Permalink Reply by Robin Dripps on March 30, 2015 at 5:42pm

Daniel,

I feel rather foolish in that I was trying to reconstruct a prior definition from memory and overlooked a crucial detail. Thanks for reminding me.

robin

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