V121 still has a minor bug – the "Bent Shape" dialog box may open behind the main SketchUp window. Simply minimize SketchUp to find it.

: If you are using a newer version of SketchUp (2021+), older versions of TOH Rebars may throw "Method errors." Upgrading to TOH Rebars v1.4.2 R2

If the extension crashes or fails to generate specific components (like triangle foundations), this was a known bug in earlier builds. Updating to the latest stable version (currently v1.5.5 ) often resolves these "method errors". 2. Official Sources & Latest Versions

The original TOH Rebars V120 was built for SketchUp 8 and 2013. Modern SketchUp versions (especially 2021+) have changed three critical things:

The Digital Skeleton: Reimagining Construction with Toh Rebars