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…

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.