topic Re: IFC Export Issue - Revit 2021 in Revit Architecture Forum

IFC Export Issue - Revit 2021

baris — Mon, 13 Apr 2020 08:42:58 GMT

Hi,

There is an issue with IFC export.

When I try to export IFC file with the option "Export user-defined property set" enabled, 2021 does not even try to export IFC, whereas in 2020, the same file, same options, exports successfully.

Re: IFC Export Issue - Revit 2021

Rafal.Gaweda — Tue, 14 Apr 2020 09:18:51 GMT

Hi @baris

Thank You for reporting the issue.

I am investigating it.

Re: IFC Export Issue - Revit 2021

Anonymous — Thu, 30 Apr 2020 08:35:01 GMT

Same here.

Not possible on Revit 2021!

Re: IFC Export Issue - Revit 2021

Rafal.Gaweda — Thu, 30 Apr 2020 08:38:58 GMT

Hi @Anonymous

Official article here:

IFC not exported with the option "Export user-defined property set" enabled from Revit 2021

Re: IFC Export Issue - Revit 2021

Anonymous — Thu, 30 Apr 2020 09:26:40 GMT

And what, if I need my user defined Psets?

How do I get them?

This is not a workaround. Because with a workaround I would get what I want and had before, just in another way.

Re: IFC Export Issue - Revit 2021

Rafal.Gaweda — Thu, 30 Apr 2020 09:29:07 GMT

Hi @Anonymous

I am afraid we have to wait for fix.

I am sorry.

Re: IFC Export Issue - Revit 2021

baris — Thu, 30 Apr 2020 10:40:09 GMT

Also, there is another situation about 2021 IFC Export.

When I export a file by using Revit 2020, it takes 17 seconds to export, whereas by using Revit 2021, it takes 3 minutes 26 seconds (same file, same IFC export setup-IFC 2x3 CV2 standard setup). I tried using different projects, also different computers. Revit 2021 IFC export extremely taking longer time in any situation. (Another project and computer, 4 times slower) (another project Revit 2020 Export time: 52seconds, Revit 2021 export time: 11minutes 3 seconds)

Re: IFC Export Issue - Revit 2021

Anonymous — Thu, 30 Apr 2020 10:59:41 GMT

Thanks for pointing out.

I didn't come that far, since I need my UDP.....

As always: upgrade for production only after spring update.....

BTW: colleague reported, Dynamo seems to be faster in 2021.... but not validated yet

Re: IFC Export Issue - Revit 2021

Anonymous — Fri, 22 May 2020 03:43:51 GMT

Any news here?

We are facing the same problem and we are desperate in need of a solution

Re: IFC Export Issue - Revit 2021

baris — Fri, 22 May 2020 08:55:23 GMT

Unfortunately no 😞

Re: IFC Export Issue - Revit 2021

angel_velez — Fri, 22 May 2020 14:08:46 GMT

Hello all, there is a workaround for this. There is a missing DLL in the Revit 2021 install (which will clearly be fixed in an upcoming update). In the meantime, you can do the following: Get IFC 2020 from the App Store and install it. When you do (or if you already have it), search for GeometryGymIFC.DLL on your computer. Copy/paste it into the Program directory for Revit 2021. This will get the option to work.

I apologize for missing this in the install, and the open source update will also fix this problem.

Re: IFC Export Issue - Revit 2021

baris — Fri, 22 May 2020 22:04:48 GMT

Thank you, dear Angel,

This workaround solved both problems:

Now I can define user-defined parameter sets
and Revit exports IFC file so much faster

Re: IFC Export Issue - Revit 2021

Anonymous — Fri, 22 May 2020 22:06:55 GMT

Thanks Angel!
As good as always!

Re: IFC Export Issue - Revit 2021

Milan_Nemec — Tue, 26 May 2020 15:07:14 GMT

I can't find it on my computer. Can You attach this dll here ?

Regards,

Milann

Re: IFC Export Issue - Revit 2021

angel_velez — Tue, 26 May 2020 15:13:49 GMT

I believe we are preparing better notes for what to do - I am unsure if we can just post the DLL here. Here is the preview, though:

Download IFC 2020 from the Autodesk App Store.
Browse to the following folder: C:\ProgramData\Autodesk\ApplicationPlugins\IFC 2020.bundle\Contents\2020
Find the file GeometryGymIFC.dll.
Copy the GeometryGymIFC.dll file and paste into the Revit 2021 program folder (e.g. C:\Program Files\Autodesk\Revit 2021).

Please try that.

Re: IFC Export Issue - Revit 2021

Adrian.kearns — Wed, 10 Feb 2021 22:06:23 GMT

Hi Angel,

I'm experiencing the same issues as reported in this thread.

I've tried the fix as you've outlined but I'm still getting the same results (i.e. my shared parameter mappings are not exporting when this was previously the case in Revit 2017)

I'm currently using Revit 2021.1.2 and I've tried installing all the Revit 2021 updates / hot fixes.

Can you recommend any further workarounds?

Many thanks.

Re: IFC Export Issue - Revit 2021

angel_velez — Thu, 11 Feb 2021 00:10:46 GMT

Can you verify that the missing GeometryGymIFC.dll file is in your C:\Program Files\Autodesk\Revit 2021 folder?

Re: IFC Export Issue - Revit 2021

Adrian.kearns — Thu, 11 Feb 2021 00:29:29 GMT

Hi Angel,

Thanks for getting back to me.

Yes, I followed the procedure as outlined in your message and officially here:

https://knowledge.autodesk.com/support/revit-products/troubleshooting/caas/sfdcarticles/sfdcarticles/IFC-not-exported-with-the-option-Export-user-defined-property-set-enabled-from-Revit-2021.html?_ga=2.225368282.1316859929.1612954710-629524194.1535617196

I downloaded the IFC Exporter 2020 and copied the GeometryGymIFC.dll from there and pasted it to

C:\Program Files\Autodesk\Revit 2021

I wasn't sure whether I sure paste it there or here so I copied the file to both locations:

C:\ProgramData\Autodesk\ApplicationPlugins\IFC 2021.bundle\Contents\2021

Re: IFC Export Issue - Revit 2021

angel_velez — Thu, 11 Feb 2021 04:24:49 GMT

OK, it is possible that there is something that was not fully supported that no longer works. Can you include a trivial Revit file and your shared parameters file so we can investigate?

Re: IFC Export Issue - Revit 2021

Adrian.kearns — Thu, 11 Feb 2021 11:28:13 GMT

Hi Angel,

Please find attached.

I've added shared parameters to my project and then mapped these parameters in the txt file.

However, I'm having difficulty getting these parameters to export to my IFC file.

If you had any ideas on how I could resolve this issue, that would be greatly appreciated.

Many thanks.