Installing an older version is no different than a new one, but you must clean your system first to avoid "Version Mismatch" errors.
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before making any changes. Keep copies of working plugin folders so you can quickly revert if something goes wrong.
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(Optional) Navigate to your computer's Plugins folder ( AppData/Roaming/SketchUp/SketchUp [Year]/SketchUp/Plugins on Windows) and manually delete any leftover Fredo6_LibFredo6 folders. Step 2: Install the Legacy RBZ File Launch SketchUp.
This version is required to run legacy versions of other Fredo6 tools like FredoTools v3.8c . Why Use an Older Version?
Libfredo6 (also known as Fredo6 Library) is a shared code library developed by the legendary French developer Fredo6. It provides the common user interface (UI), language translation, error handling, and geometry management functions required by his suite of plugins. Libfredo6 Old Version
If you are working on a machine that cannot be upgraded, using the archived versions ensures your existing toolkit (RoundCorner, FredoScale, etc.) remains functional . Common Issues & Tips
Older computers running legacy operating systems (like older versions of macOS or Windows 7/8) cannot run modern flavors of SketchUp or the latest Ruby frameworks. An older library release ensures your extensions remain operational on vintage hardware. LibFredo6 Version Compatibility Matrix
If you’re running a , you must use the corresponding legacy versions of LibFredo6. Attempting to install the latest version on an older SketchUp will result in errors and the library will not function properly. Installing an older version is no different than
Installing an older .rbz file follows the standard SketchUp extension workflow. Follow these steps to ensure a clean installation: Step 1: Clean Out the New Version
A: Windows/Mac updates sometimes change the Ruby environment path. Reinstall the old RBZ file to reset the file associations.
Download the older LibFredo6 file (usually packaged as a .zip file for older systems). Keep copies of working plugin folders so you
Older workstations or specific retro operating systems may lack the capacity to process modern SketchUp updates, meaning their local extension architectures must remain frozen in time. The Definitive Legacy Version: LibFredo6 v9.5k
Think of Libfredo6 like a Windows DLL file. If you replace a modern DLL with an ancient one, your entire application might become unstable. Similarly, installing a Libfredo6 old version (e.g., v2.0) alongside a modern FredoTools (v12.0) will cause a cascade of errors.