If you still see errors, post your (Window → Ruby Console) to the Sketchucation Troubleshooting forum with the tag #TOH_Rebars_Fix . The community, including the author of this article, actively monitors that thread.
Follow these steps meticulously. Do not skip the pre-installation checklist.
Before installing, prepare SketchUp to accept the legacy V120 code.
2.0 Extension for SketchUp Download Fix." Since v1.2.0 is an older version and the developer has since released newer updates to address various bugs, this post focuses on standard installation fixes and upgrading to the most stable version.
This bypasses the Extension Manager entirely.
– At the very top of the file, paste: