UE5.6.1-release version can not import cgr files

ShiHouChao · August 22, 2025, 10:32am

I use Unreal Engine source code (tags 5.6.1-release) for development.

I want to use Datasmith CAD Importer plugin to import cgr to my project.

But in the file selection window I didn’t find cgr extension choice.

I can find the extension choice in 5.6.1 launcher version.

How can I deal with this problem .

Whis your help,thanks a lot!

In the source code it seems doesn’t contain a Marco define so that cgr extension doesn’t work.

But I don’t know where to define it.

UE_FlavienP · August 22, 2025, 11:05am

For licensing reason we do not ship the library that you need to build Datasmith CAD in UE source code. So you cannot build the all the CAD import libraries yourself.

If you still want to use dev version of engine you can try to copy all missing dll and executable from laucher installation into your source build one.

Check these two folders:

Engine/Binaries/ThirdParty/Techsoft/Win64/

Engine/Plugins/Enterprise/DatasmithCADImporter/Binaries/Win64/

ShiHouChao · August 22, 2025, 11:20am

Thanks for reply.

I replace the two folder that you mentioned.

Compile my project ,and it seem CAD do use the existed dll and not compiled by source.

But I still not found the extision in import window.