Profile Builder 4 utilizes an isolated local web server to render its advanced user interface. Portable versions of SketchUp often block local port hosting or lack the necessary administrative permissions to spin up this background service, rendering the UI inaccessible. 3. Chromium Embedded Framework (CEF) Mismatches
Which of SketchUp are you running (e.g., 2021 or 2024)?
Extract the contents. You should see a folder (e.g., PB3 or PB4 ) and a file named profilebuilder.rb .
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– Profile Builder allows you to cut holes through nested groups and components. Crucially, those holes are remembered; if you later edit the path or assembly, the holes regenerate in the right places.
in a hardcoded C: drive path and can't find it, it returns a 404 error. 3. Version Incompatibility SketchUp 2024 uses a new graphics engine and updated Ruby API.
Dragging and dropping .rb and .rbz files directly into a portable app's folder often causes asset fragmentation.
Profile Builder 3 and 4 use Chromium Embedded Framework (CEF) or Microsoft Edge WebView2 to render tool dialogs. When the pathing breaks, the web engine treats the missing UI file as an unfindable webpage, spawning a 404 error.
Profile Builder 4 is an essential extension for SketchUp that replaces manual "Follow Me" operations with a parametric workflow. It allows users to define 2D profiles—such as moldings, walls, or pipes—and extrude them along complex paths while maintaining control over orientation, materials, and offsets.
I can then provide specific steps to fix the file paths for your exact setup.