This extension requires TT_Lib² to run. If SketchUp asks to install this library as well, click Yes . Why Use Solid Inspector²?

: If Solid Inspector² says "No Errors" but SketchUp still does not recognize your object as a solid, try ungrouping the entire model and then regrouping it. This simple action can often reset the geometry's internal definitions and solve the problem.

Click the Solid Inspector 2 icon (looks like a spyglass) or go to Tools > Solid Inspector² .

If you cannot find an internal face, use a section cut to look inside your model.

If you used Method 2 to download the .rbz file manually, follow these steps to install it: Open .

Disclaimer: This guide is based on information available as of June 2026. Solid Inspector 2 is a free tool maintained by the community. Solid Inspector² - SketchUp Extension Warehouse