: The plugin requires your geometry to be a "Manifold Solid" (a group or component with no holes) to function correctly.
The official and safest place to download the latest version of Slicer 5 is through the SketchUcation PluginStore Slicer5 on SketchUcation You must create a free account on SketchUcation to access the download button. SketchUp Community Key Features of Slicer 5 Slicer 5 Sketchup Plugin Free Download LINK