Error: This does not appear to be a SketchUp model!

I got an error today when tried to open my drawing

This does not appear to be a SketchUp model!

Could anyone help?

Garage.skp (2.4 MB)

Is this the model you want to open?

Yes. But it has no textures and colors

I set the Monochrome style, but the idea is that the file you posted in the forum can be opened without problems.

Garage_saved in_SU2021.skp (2.5 MB)

Thanks! I successfully opened this file in my SU.
But when I try to open file from the link in first message (Trimble Connect) it show this screen

Then maybe someone else who is using it can help…
I moved your topic to Trimble Connect category…

@colin
Second time I’ve seen this. The file can be opened with the 2022 Sketchup API but not by the 2023 API

You said API, but yes, even File/Open seems to succeed in 2022. I have seen other cases, and did make a bug report about it. I will check how that is going, and add this as an example file.