2 problems: Unable to detect generic floor type | Revit could not complete the external command

Hi,

I just started using GG and I tried to test it using two simple examples but unforunately I have some issues. First of all, I tried to import a simple box -walls, floor, roof- and while the walls are correctly imported, it is impossible to import the slabs no matter what I do. I keep getting the error in Picture 1.

After that, I followed one simple exercise-tutorial that Jon has uploaded on youtube, where he imports the slabs of a tower, and this time I had another error (Picture 2,3). I also attach this definition, as well as the IFC files that I've baked.

Could you please tell me what I am doing wrong? Thank you!

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Replies to This Discussion

Permalink Reply by Jon Mirtschin on June 14, 2016 at 1:18am

Hi Amalia,

Revit uses system families for floors, roofs, walls etc.

I can't create one from scratch using the API, only duplicate a generic one and modify it.

You need to have a floor family in the project that has only a single material layer, else floor families can't be generated.

For the building storey name error, seems my plugin doesn't handle levels with empty names. If you define a unique name each storey (as I've done in the attached), it should work better.

Let me know if this isn't helpful.

Cheers,

Jon

Attachments:

error_tower.gh, 40 KB

Permalink Reply by AMALIA VRANA on June 14, 2016 at 3:53am

Hi Jon!

Thank you for your quick reply. OK, so, the building storey name error is gone now, but I still get the other one in both definitions (shoebox+tower). I have a floor family that has only a single material layer (see picture) but it still does not work. Am I doing something wrong with the naming again?

Permalink Reply by AMALIA VRANA on June 14, 2016 at 4:15am

OK, got it. I named the family "Generic Floor Type" and it worked.

I am not sure, though, that I understand your comment on the video https://www.youtube.com/watch?v=iZrA79nM1Ik [at 6:48], when you say that "a family has been created from the data within that grasshopper definition". I haven't used the name "Generic Floor Type" in GH, so why do I have to use this specific name in Revit? If I have different constructions, for example one concrete slab and one wooden slab, do I have to create different single material families in Revit and how can I name them correctly before getting the error? I hope this makes sense!

Thank you!