REVIT 2026 Won't export to IFC?

[katsanosengineer]

Hello, lately I've been having some issues exporting a project to IFC format. I have both versions 2026 and 2024 downloaded, and have recently switched to 2026. When I exported IFC's from the 2024 version, I had 0 problems doing so, but now, the latest version is giving me issues. It shows this message, (image)

I have no idea what the message might refer to, and since I cannot save the project in an earlier version like you can do in AutoCAD, I'm completely at a loss. 

What can I do?

[nadiaVXVWZ]

I have the same problem.. anyone knows the response for that?

[FG_RVT]

Looks like a Windows issue no? Like you try to overwrite the file filename.ifc but that file already exists and you don't have write permissions for that file / directory. I'd try to save to a different directory.

[mari.shimode]

Hi @katsanosengineer, how are you doing? Please reply if you still need assistance. If you have solved the issue, please click the Accept Solution button on a reply you have found useful so that others who have the same question can find the information easily. Thank you.

[eddieDJL7E · Accepted solution]

I am also having this issue. Cant get it to work at all.  All permissions etc are fine.

EDIT: I tried saving the IFC to the desktop and that worked. I was originally trying to save to a mapped network drive and that was failing with the above error. I know the permissions are correct in windows as i am able to open and edit all files within the folder i was trying to export the ifc to.

[MiWolff]

Does your Export IFC window show a version number somewhere. If it does not, your exporter is the out of the box one. Try updating it to the latest version.

[thiruvengadam.vijayaraghavan · Accepted solution]

Hello @katsanosengineer, if you are saving on a network drive, could you please check if you can save IFC files to the local drive, for example, to C:\Autodesk?

[geraldDUN6M]

Yes, it works for me as well, save in the desktop. thanks for this one.

[mari.shimode]

Hi @katsanosengineer, I have marked replies from @eddieDJL7E and @thiruvengadam.vijayaraghavan as an accepted solution so others who have the same issue can find the information easily. Thank you for visiting the Autodesk Community.

[nummetu]

Hi! That doesn’t fully solve the issue. We also need to be able to create IFC over the network, as was possible in previous Revit versions.

[ryzhov_roman]

I'm experiencing a conflict between the built-in (pre-installed) IFC exporter and the recommended IFC exporter plugin in Revit 2026.

It is possible to simply disable the recommended IFC exporter through this RevitAddInsManager to resolve the overlap.


C:\Program Files\Autodesk\Revit 2026\AddInsManager\RevitAddInsManager.exe

[jason.larsenPF5AU]

I have the same issue. What was the solution?

[jason.larsenPF5AU]

I am the same, I need to save over network

[b_romaniuk]

Hi there,
the issue was resolved after disabling one of the BIM IFC Importer plugins.
It appears that the two IFC importers were conflicting with each other, which caused the export error

[martin_schoenhoff]

Hello,

we have the same issue but these Plugins are not shown in the revit add-ins manager. Any suggestions?